# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/. */

# This file defines static prefs, i.e. those that are defined at startup and
# used entirely or mostly from C++ and/or Rust code.
#
# The file is separated into sections, where each section contains a group of
# prefs that all share the same first segment of their name -- all the "gfx.*"
# prefs are together, all the "network.*" prefs are together, etc. Sections
# must be kept in alphabetical order, but prefs within sections need not be.
#
# Basics
# ------
# Any pref defined in one of the files included here should *not* be defined
# in a data file such as all.js; that would just be useless duplication.
#
# (Except under unusual circumstances where the value defined here must be
# overridden, e.g. for some Thunderbird prefs. In those cases the default
# value from the data file will override the static default value defined
# here.)
#
# Please follow the existing prefs naming convention when considering adding a
# new pref, and don't create a new pref group unless it's appropriate and there
# are likely to be multiple prefs within that group. (If you do, you'll need to
# update the `pref_groups` variable in modules/libpref/moz.build.)
#
# Definitions
# -----------
# A pref definition looks like this:
#
#   - name: <pref-name>                    # mandatory
#     type: <cpp-type>                     # mandatory
#     value: <default-value>               # mandatory
#     mirror: <never | once | always>      # mandatory
#     do_not_use_directly: <true | false>  # optional
#     include: <header-file>               # optional
#     rust: <true | false>                 # optional
#
# - `name` is the name of the pref, without double-quotes, as it appears
#   in about:config. It is used in most libpref API functions (from both C++
#   and JS code).
#
# - `type` is one of `bool`, `int32_t`, `uint32_t`, `float`, an atomic version
#   of one of those, or `String`. Note that float prefs are stored internally
#   as strings. The C++ preprocessor doesn't like template syntax in a macro
#   argument, so use the typedefs defined in StaticPrefsBase.h; for example,
#   use `RelaxedAtomicBool` instead of `Atomic<bool, Relaxed>`.
#
# - `value` is the default value. Its type should be appropriate for
#   <cpp-type>, otherwise the generated code will fail to compile. A complex
#   C++ numeric expressions like `60 * 60` (which the YAML parser cannot treat
#   as an integer or float) is treated as a string and passed through without
#   change, which is useful.
#
# - `mirror` indicates how the pref value is mirrored into a C++ variable.
#
#   * `never`: There is no C++ mirror variable. The pref value can only be
#     accessed via the standard libpref API functions.
#
#   * `once`: The pref value is mirrored into a variable at startup; the
#     mirror variable is left unchanged after that. (The exact point at which
#     all `once` mirror variables are set is when the first `once` mirror
#     variable is accessed, via its getter function.) This is mostly useful for
#     graphics prefs where we often don't want a new pref value to apply until
#     restart. Otherwise, this update policy is best avoided because its
#     behaviour can cause confusion and bugs.
#
#   * `always`: The mirror variable is always kept in sync with the pref value.
#     This is the most common choice.
#
#   When a mirror variable is present, a getter will be created that can access
#   it. Using the getter function to read the pref's value has the two
#   following advantages over the normal API functions.
#
#   * A direct variable access is faster than a hash table lookup.
#
#   * A mirror variable can be accessed off the main thread. If a pref *is*
#     accessed off the main thread, it should have an atomic type. Assertions
#     enforce this.
#
#   Note that Rust code must access the mirror variable directly, rather than
#   via the getter function.
#
# - `do_not_use_directly` indicates if `_DoNotUseDirectly` should be appended to
#   the name of the getter function. This is simply a naming convention
#   indicating that there is some other wrapper getter function that should be
#   used in preference to the normal static pref getter. Defaults to `false` if
#   not present. Cannot be used with a `never` mirror value, because there is
#   no getter function in that case.
#
# - `include` names a header file that must be included for the pref value to
#   compile correctly, e.g. because it refers to a code constant. System
#   headers should be surrounded with angle brackets, e.g. `<cmath>`.
#
# - `rust` indicates if the mirror variable is used by Rust code. If so, it
#   will be usable via the `static_prefs::pref!` macro, e.g.
#   `static_prefs::pref!("layout.css.font-display.enabled")`.
#
# The getter function's base name is the same as the pref's name, but with
# '.' or '-' chars converted to '_', to make a valid identifier. For example,
# the getter for `foo.bar_baz` is `foo_bar_baz()`. This is ugly but clear,
# and you can search for both the pref name and the getter using the regexp
# /foo.bar.baz/. Suffixes are added as follows:
#
# - If the `mirror` value is `once`, `_AtStartup` is appended, to indicate the
#   value was obtained at startup.
#
# - If the `do_not_use_directly` value is true, `_DoNotUseDirectly` is
#   appended.
#
# Preprocessor
# ------------
# Note finally that this file is preprocessed by preprocessor.py, not the C++
# preprocessor. As a result, the following things may be surprising.
#
# - YAML comments start with a '#', so putting a comment on the same line as a
#   preprocessor directive is dubious. E.g. avoid lines like `#define X 3 #
#   three` because the ` # three` will be part of `X`.
#
# - '@' use is required for substitutions to occur. E.g. with `#define FOO 1`,
#   `FOO` won't be replaced with `1` unless it has '@' chars around it.
#
# - Spaces aren't permitted between the leading '#' and the name of a
#   directive, e.g. `#ifdef XYZ` works but `# ifdef XYZ` does not.
#
# Please indent all prefs defined within #ifdef/#ifndef conditions. This
# improves readability, particular for conditional blocks that exceed a single
# screen. But note that the leading '-' in a definition must remain in the
# first column for it to be valid YAML.

#ifdef RELEASE_OR_BETA
#define IS_NOT_RELEASE_OR_BETA false
#else
#define IS_NOT_RELEASE_OR_BETA true
#endif

#ifdef NIGHTLY_BUILD
#define IS_NIGHTLY_BUILD      true
#define IS_NOT_NIGHTLY_BUILD  false
#else
#define IS_NIGHTLY_BUILD      false
#define IS_NOT_NIGHTLY_BUILD  true
#endif

#if defined(NIGHTLY_BUILD) || defined(MOZ_DEV_EDITION)
#define IS_NIGHTLY_OR_DEV_EDITION true
#else
#define IS_NIGHTLY_OR_DEV_EDITION false
#endif

#ifdef MOZILLA_OFFICIAL
#define IS_NOT_MOZILLA_OFFICIAL false
#else
#define IS_NOT_MOZILLA_OFFICIAL true
#endif

#ifdef EARLY_BETA_OR_EARLIER
#define IS_EARLY_BETA_OR_EARLIER true
#define IS_NOT_EARLY_BETA_OR_EARLIER false
#else
#define IS_EARLY_BETA_OR_EARLIER false
#define IS_NOT_EARLY_BETA_OR_EARLIER true
#endif

#ifdef ANDROID
#define IS_ANDROID true
#define IS_NOT_ANDROID false
#else
#define IS_ANDROID false
#define IS_NOT_ANDROID true
#endif

#---------------------------------------------------------------------------
# Prefs starting with "accessibility."
#---------------------------------------------------------------------------

- name: accessibility.accesskeycausesactivation
  type: bool
  value: true
  mirror: always

- name: accessibility.monoaudio.enable
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: accessibility.browsewithcaret
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: accessibility.AOM.enabled
  type: bool
  value: false
  mirror: always

- name: accessibility.ARIAReflection.enabled
  type: bool
  value: false
  mirror: always

# Whether form controls and images should be focusable with mouse, in content
# documents.
#
# This matches historical macOS / Safari behavior.
#
#  * 0: never
#  * 1: always
#  * 2: on content documents
- name: accessibility.mouse_focuses_formcontrol
  type: int32_t
#ifdef XP_MACOSX
  value: 2
#else
  value: 1
#endif
  mirror: always

# Whether to cache the entire accessibility trees of all content processes in
# the parent process.
- name: accessibility.cache.enabled
  type: bool
  value: false
  mirror: once

#---------------------------------------------------------------------------
# Prefs starting with "alerts."
#---------------------------------------------------------------------------

# Whether to use platform-specific backends for showing desktop notifications.
# If no such backend is available, or if the pref is false, then XUL
# notifications are used.
- name: alerts.useSystemBackend
  type: bool
#ifdef XP_WIN
  # Linux and macOS turn on system level notification as default, but Windows is
  # disabled due to instability (dependencies of bug 1497425).
  value: false
#else
  value: true
#endif
  mirror: always


#ifdef ANDROID
  #---------------------------------------------------------------------------
  # Prefs starting with "android."
  #---------------------------------------------------------------------------

  # On Android, we want an opaque background to be visible under the page,
  # so layout should not force a default background.
-   name: android.widget_paints_background
    type: RelaxedAtomicBool
    value: true
    mirror: always

-   name: android.touch_resampling.enabled
    type: RelaxedAtomicBool
    value: true
    mirror: always

#endif

#---------------------------------------------------------------------------
# Prefs starting with "apz."
# The apz prefs are explained in AsyncPanZoomController.cpp
#---------------------------------------------------------------------------

# amount we zoom in for a double tap gesture if we couldn't find any content
# based rect to zoom to
- name: apz.doubletapzoom.defaultzoomin
  type: AtomicFloat
  value: 1.2f
  mirror: always

- name: apz.scrollbarbuttonrepeat.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: apz.wr.activate_all_scroll_frames
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: apz.wr.activate_all_scroll_frames_when_fission
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: apz.nonwr.activate_all_scroll_frames
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: apz.nonwr.activate_all_scroll_frames_when_fission
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: apz.prefer_jank_minimal_displayports
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: apz.allow_double_tap_zooming
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: apz.mac.enable_double_tap_zoom_touchpad_gesture
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: apz.allow_immediate_handoff
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: apz.allow_zooming
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: apz.allow_zooming_out
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: apz.android.chrome_fling_physics.friction
  type: AtomicFloat
  value: 0.015f
  mirror: always

- name: apz.android.chrome_fling_physics.inflexion
  type: AtomicFloat
  value: 0.35f
  mirror: always

- name: apz.android.chrome_fling_physics.stop_threshold
  type: AtomicFloat
  value: 0.1f
  mirror: always

- name: apz.autoscroll.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: apz.axis_lock.breakout_angle
  type: AtomicFloat
  value: float(M_PI / 8.0)    # 22.5 degrees
  mirror: always
  include: <cmath>

- name: apz.axis_lock.breakout_threshold
  type: AtomicFloat
  value: 1.0f / 32.0f
  mirror: always

- name: apz.axis_lock.direct_pan_angle
  type: AtomicFloat
  value: float(M_PI / 3.0)    # 60 degrees
  mirror: always
  include: <cmath>

- name: apz.axis_lock.lock_angle
  type: AtomicFloat
  value: float(M_PI / 6.0)    # 30 degrees
  mirror: always
  include: <cmath>

# Whether to lock touch scrolling to one axis at a time.
# 0 = FREE (No locking at all)
# 1 = STANDARD (Once locked, remain locked until scrolling ends)
# 2 = STICKY (Allow lock to be broken, with hysteresis)
- name: apz.axis_lock.mode
  type: RelaxedAtomicInt32
  value: 2
  mirror: always

- name: apz.content_response_timeout
  type: RelaxedAtomicInt32
  value: 400
  mirror: always

- name: apz.danger_zone_x
  type: RelaxedAtomicInt32
  value: 50
  mirror: always

- name: apz.danger_zone_y
  type: RelaxedAtomicInt32
  value: 100
  mirror: always

- name: apz.disable_for_scroll_linked_effects
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: apz.displayport_expiry_ms
  type: RelaxedAtomicUint32
  value: 15000
  mirror: always

- name: apz.drag.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: apz.drag.initial.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: apz.drag.touch.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: apz.enlarge_displayport_when_clipped
  type: RelaxedAtomicBool
  value: @IS_ANDROID@
  mirror: always

# Test only.
- name: apz.fixed-margin-override.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Test only.
- name: apz.fixed-margin-override.bottom
  type: RelaxedAtomicInt32
  value: 0
  mirror: always

# Test only.
- name: apz.fixed-margin-override.top
  type: RelaxedAtomicInt32
  value: 0
  mirror: always

- name: apz.fling_accel_base_mult
  type: AtomicFloat
  value: 1.0f
  mirror: always

- name: apz.fling_accel_supplemental_mult
  type: AtomicFloat
  value: 1.0f
  mirror: always

- name: apz.fling_accel_min_fling_velocity
  type: AtomicFloat
  value: 1.5f
  mirror: always

- name: apz.fling_accel_min_pan_velocity
  type: AtomicFloat
  value: 0.8f
  mirror: always

- name: apz.fling_accel_max_pause_interval_ms
  type: RelaxedAtomicInt32
  value: 50
  mirror: always

- name: apz.fling_curve_function_x1
  type: float
  value: 0.0f
  mirror: once

- name: apz.fling_curve_function_x2
  type: float
  value: 1.0f
  mirror: once

- name: apz.fling_curve_function_y1
  type: float
  value: 0.0f
  mirror: once

- name: apz.fling_curve_function_y2
  type: float
  value: 1.0f
  mirror: once

- name: apz.fling_curve_threshold_inches_per_ms
  type: AtomicFloat
  value: -1.0f
  mirror: always

- name: apz.fling_friction
  type: AtomicFloat
  value: 0.002f
  mirror: always

- name: apz.fling_min_velocity_threshold
  type: AtomicFloat
  value: 0.5f
  mirror: always

- name: apz.fling_stop_on_tap_threshold
  type: AtomicFloat
  value: 0.05f
  mirror: always

- name: apz.fling_stopped_threshold
  type: AtomicFloat
  value: 0.01f
  mirror: always

- name: apz.touch_acceleration_factor_x
  type: float
  value: 1.0f
  mirror: always

- name: apz.touch_acceleration_factor_y
  type: float
  value: 1.0f
  mirror: always

# new scrollbar code for desktop zooming
- name: apz.force_disable_desktop_zooming_scrollbars
  type: RelaxedAtomicBool
  value: false
  mirror: always

#ifdef MOZ_WIDGET_GTK
-   name: apz.gtk.kinetic_scroll.enabled
    type: RelaxedAtomicBool
    value: true
    mirror: always

-   name: apz.gtk.touchpad_pinch.enabled
    type: RelaxedAtomicBool
    value: true
    mirror: always

-   name: apz.gtk.touchpad_pinch.three_fingers.enabled
    type: RelaxedAtomicBool
    value: false
    mirror: always
#endif

- name: apz.keyboard.enabled
  type: bool
  value: @IS_NOT_ANDROID@
  mirror: once

- name: apz.keyboard.passive-listeners
  type: RelaxedAtomicBool
  value: @IS_NOT_ANDROID@
  mirror: always

- name: apz.max_tap_time
  type: RelaxedAtomicInt32
  value: 300
  mirror: always

- name: apz.max_velocity_inches_per_ms
  type: AtomicFloat
  value: -1.0f
  mirror: always

- name: apz.max_velocity_queue_size
  type: uint32_t
  value: 5
  mirror: once

- name: apz.min_skate_speed
  type: AtomicFloat
  value: 1.0f
  mirror: always

- name: apz.minimap.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: apz.mvm.force-enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: apz.one_touch_pinch.enabled
  type: RelaxedAtomicBool
  value: @IS_ANDROID@
  mirror: always

- name: apz.overscroll.enabled
  type: RelaxedAtomicBool
#if defined(XP_MACOSX)
  value: true
#else
  value: false
#endif
  mirror: always

# The "test async scroll offset" (used via reftest-async-scroll
# or nsIDOMWindowUtils.setAsyncScrollOffset()) can be used to
# trigger overscroll. Used for tests only.
- name: apz.overscroll.test_async_scroll_offset.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: apz.overscroll.min_pan_distance_ratio
  type: AtomicFloat
  value: 1.0f
  mirror: always

- name: apz.overscroll.stop_distance_threshold
  type: AtomicFloat
  value: 5.0f
  mirror: always

- name: apz.overscroll.spring_stiffness
  type: AtomicFloat
  value: 200
  mirror: always

- name: apz.overscroll.damping
  type: AtomicFloat
  value: 1.1
  mirror: always

- name: apz.overscroll.max_velocity
  type: AtomicFloat
  value: 10
  mirror: always

- name: apz.paint_skipping.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: apz.peek_messages.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Fetch displayport updates early from the message queue.
- name: apz.pinch_lock.mode
  type: RelaxedAtomicInt32
  value: 1
  mirror: always

- name: apz.pinch_lock.scroll_lock_threshold
  type: AtomicFloat
  value: 1.0f / 32.0f   # 1/32 inches
  mirror: always

- name: apz.pinch_lock.span_breakout_threshold
  type: AtomicFloat
  value: 1.0f / 32.0f   # 1/32 inches
  mirror: always

- name: apz.pinch_lock.span_lock_threshold
  type: AtomicFloat
  value: 1.0f / 32.0f   # 1/32 inches
  mirror: always

- name: apz.pinch_lock.buffer_max_age
  type: int32_t
  value: 50   # milliseconds
  mirror: once

- name: apz.popups.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether to print the APZC tree for debugging.
- name: apz.printtree
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: apz.record_checkerboarding
  type: RelaxedAtomicBool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

- name: apz.second_tap_tolerance
  type: AtomicFloat
  value: 0.5f
  mirror: always

- name: apz.test.fails_with_native_injection
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: apz.test.logging_enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: apz.touch_move_tolerance
  type: AtomicFloat
  value: 0.1f
  mirror: always

- name: apz.touch_start_tolerance
  type: AtomicFloat
  value: 0.1f
  mirror: always

- name: apz.velocity_bias
  type: AtomicFloat
  value: 0.0f
  mirror: always

- name: apz.velocity_relevance_time_ms
  type: RelaxedAtomicUint32
  value: 100
  mirror: always

- name: apz.windows.force_disable_direct_manipulation
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: apz.windows.use_direct_manipulation
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: apz.windows.check_for_pan_gesture_conversion
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: apz.x_skate_highmem_adjust
  type: AtomicFloat
  value: 0.0f
  mirror: always

- name: apz.x_skate_size_multiplier
  type: AtomicFloat
  value: 1.25f
  mirror: always

- name: apz.x_stationary_size_multiplier
  type: AtomicFloat
  value: 1.5f
  mirror: always

- name: apz.y_skate_highmem_adjust
  type: AtomicFloat
  value: 0.0f
  mirror: always

- name: apz.y_skate_size_multiplier
  type: AtomicFloat
#if defined(MOZ_WIDGET_ANDROID)
  value: 1.5f
#else
  value: 3.5f
#endif
  mirror: always

- name: apz.y_stationary_size_multiplier
  type: AtomicFloat
#if defined(MOZ_WIDGET_ANDROID)
  value: 1.5f
#else
  value: 3.5f
#endif
  mirror: always

- name: apz.zoom_animation_duration_ms
  type: RelaxedAtomicInt32
#if defined(MOZ_WIDGET_ANDROID)
  value: 250
#else
  value: 350
#endif
  mirror: always

- name: apz.scale_repaint_delay_ms
  type: RelaxedAtomicInt32
  value: 500
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "beacon."
#---------------------------------------------------------------------------

# Is support for Navigator.sendBeacon enabled?
- name: beacon.enabled
  type: bool
  value: true
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "bidi."
#---------------------------------------------------------------------------

# Whether delete and backspace should immediately delete characters not
# visually adjacent to the caret, or adjust the visual position of the caret
# on the first keypress and delete the character on a second keypress
- name: bidi.edit.delete_immediately
  type: bool
  value: true
  mirror: always

# Bidi caret movement style:
# 0 = logical
# 1 = visual
# 2 = visual, but logical during selection
- name: bidi.edit.caret_movement_style
  type: int32_t
#if !defined(XP_LINUX) && defined(NIGHTLY_BUILD)
  value: 1
#else
  value: 2 # See Bug 1638240
#endif
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "browser."
#---------------------------------------------------------------------------

- name: browser.active_color
  type: String
  value: "#EE0000"
  mirror: never

- name: browser.anchor_color
  type: String
  value: "#0000EE"
  mirror: never

# See http://dev.w3.org/html5/spec/forms.html#attr-fe-autofocus
- name: browser.autofocus
  type: bool
  value: true
  mirror: always

- name: browser.cache.offline.enable
  type: bool
  value: @IS_NOT_EARLY_BETA_OR_EARLIER@
  mirror: always

- name: browser.cache.disk.enable
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: browser.cache.memory.enable
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Limit of recent metadata we keep in memory for faster access, in KB.
- name: browser.cache.disk.metadata_memory_limit
  type: RelaxedAtomicUint32
  value: 250   # 0.25 MB
  mirror: always

# Does the user want smart-sizing?
- name: browser.cache.disk.smart_size.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Disk cache capacity in kilobytes. It's used only when
# browser.cache.disk.smart_size.enabled == false
- name: browser.cache.disk.capacity
  type: RelaxedAtomicUint32
  value: 256000
  mirror: always

# -1 = determine dynamically, 0 = none, n = memory capacity in kilobytes.
- name: browser.cache.memory.capacity
  type: RelaxedAtomicInt32
  value: -1
  mirror: always

# When smartsizing is disabled we could potentially fill all disk space by
# cache data when the disk capacity is not set correctly. To avoid that we
# check the free space every time we write some data to the cache. The free
# space is checked against two limits. Once the soft limit is reached we start
# evicting the least useful entries, when we reach the hard limit writing to
# the entry fails.
- name: browser.cache.disk.free_space_soft_limit
  type: RelaxedAtomicUint32
  value: 5 * 1024   # 5MB
  mirror: always

- name: browser.cache.disk.free_space_hard_limit
  type: RelaxedAtomicUint32
  value: 1024    # 1MB
  mirror: always

# The number of chunks we preload ahead of read. One chunk currently has
# 256kB.
- name: browser.cache.disk.preload_chunk_count
  type: RelaxedAtomicUint32
  value: 4    # 1 MB of read ahead
  mirror: always

# Max-size (in KB) for entries in disk cache. Set to -1 for no limit.
# (Note: entries bigger than 1/8 of disk-cache are never cached)
- name: browser.cache.disk.max_entry_size
  type: RelaxedAtomicUint32
  value: 50 * 1024    # 50 MB
  mirror: always

# Max-size (in KB) for entries in memory cache. Set to -1 for no limit.
# (Note: entries bigger than than 90% of the mem-cache are never cached.)
- name: browser.cache.memory.max_entry_size
  type: RelaxedAtomicInt32
  value: 5 * 1024
  mirror: always

# Memory limit (in kB) for new cache data not yet written to disk. Writes to
# the cache are buffered and written to disk on background with low priority.
# With a slow persistent storage these buffers may grow when data is coming
# fast from the network. When the amount of unwritten data is exceeded, new
# writes will simply fail. We have two buckets, one for important data
# (priority) like html, css, fonts and js, and one for other data like images,
# video, etc.
# Note: 0 means no limit.
- name: browser.cache.disk.max_chunks_memory_usage
  type: RelaxedAtomicUint32
  value: 40 * 1024
  mirror: always
- name: browser.cache.disk.max_priority_chunks_memory_usage
  type: RelaxedAtomicUint32
  value: 40 * 1024
  mirror: always

# Number of seconds the cache spends writing pending data and closing files
# after shutdown has been signalled. Past that time data is not written and
# files are left open for the OS to clean up.
- name: browser.cache.max_shutdown_io_lag
  type: RelaxedAtomicUint32
  value: 2
  mirror: always

# A percentage limit for media content type in the disk cache. When some entries
# need to be evicted and media is over the limit, it's evicted first.
- name: browser.cache.disk.content_type_media_limit
  type: RelaxedAtomicInt32
  value: 50
  mirror: always

# How often to validate document in cache
#   0 = once-per-session,
#   1 = each-time,
#   2 = never,
#   3 = when-appropriate/automatically
- name: browser.cache.check_doc_frequency
  type: RelaxedAtomicUint32
  value: 3
  mirror: always

- name: browser.contentblocking.database.enabled
  type: bool
  value: false
  mirror: always

# How many recent block/unblock actions per origins we remember in the
# Content Blocking log for each top-level window.
- name: browser.contentblocking.originlog.length
  type: uint32_t
  value: 32
  mirror: always

- name: browser.display.background_color
  type: String
  value: "#FFFFFF"
  mirror: never

# This preference is a bit confusing because we use the opposite
# string value in the colors dialog to indicate to users how FF HCM
# will behave.
# With resect to document colors, these values mean:
# 0 = "default" = always, except in high contrast mode
# 1 = "always"
# 2 = "never"
#
# On windows, we set this to 0, which means FF HCM will mirror OS HCM.
# Everywhere else, we set this to 1, disabling FF HCM.
- name: browser.display.document_color_use
  type: RelaxedAtomicUint32
#if defined(XP_WIN)
  value: 0
#else
  value: 1
#endif
  mirror: always
  rust: true

# 0 = always native
# 1 = never native
# other = default
- name: browser.display.windows.non_native_menus
  type: RelaxedAtomicUint32
  value: 2
  mirror: always
  rust: true

# This pref dictates whether or not backplates and background images
# are to be drawn, when in high-contrast mode:
#   false: do not draw backplates or render background images
#   true: render background images and draw backplates
# This condition is only considered when high-contrast mode is enabled
# in Firefox, ie. when the user has:
#   (1) mUseAccessibilityMode set to true (Widows high-contrast mode is on)
#       AND browser.display.document_color_use set to 0
#       (only with high-contrast themes) OR
#   (2) browser.display.document_color_use set to 2 (always)
- name: browser.display.permit_backplate
  type: RelaxedAtomicBool
  value: true
  mirror: always
  rust: true

# Whether we should suppress the background-image of the canvas (the root
# frame) if we're in forced colors mode.
#
# This is important because some sites use background-image with a plain color
# and it causes undesirable results in high-contrast mode.
#
# See bug 1614921 for example.
- name: browser.display.suppress_canvas_background_image_on_forced_colors
  type: bool
  value: true
  mirror: always

- name: browser.display.focus_ring_on_anything
  type: bool
  value: false
  mirror: always

- name: browser.display.focus_ring_width
  type: uint32_t
  value: 1
  mirror: always

- name: browser.display.focus_background_color
  type: String
  value: "#117722"
  mirror: never

# Focus ring border style.
# 0 = solid border, 1 = dotted border
- name: browser.display.focus_ring_style
  type: uint32_t
  value: 1
  mirror: always

- name: browser.display.focus_text_color
  type: String
  value: "#ffffff"
  mirror: never
- name: browser.display.foreground_color
  type: String
  value: "#000000"
  mirror: never

# Whether focus rings are always shown by default.
#
# This is the initial value of nsWindowRoot::mShowFocusRings, but it can be
# overridden by system preferences.
- name: browser.display.show_focus_rings
  type: bool
  value: false
  mirror: always

# Whether we should always enable focus rings after focus was moved by keyboard.
#
# This behavior matches both historical and GTK / Windows focus behavior.
#
# :focus-visible is intended to provide better heuristics than this.
- name: browser.display.always_show_rings_after_key_focus
  type: bool
  value: false
  mirror: always

# In theory: 0 = never, 1 = quick, 2 = always, though we always just use it as
# a bool!
- name: browser.display.use_document_fonts
  type: RelaxedAtomicInt32
  value: 1
  mirror: always
  rust: true

- name: browser.display.use_focus_colors
  type: bool
  value: false
  mirror: always

- name: browser.display.use_system_colors
  type: bool
  value: false
  mirror: always

- name: browser.dom.window.dump.enabled
  type: RelaxedAtomicBool
  value: @IS_NOT_MOZILLA_OFFICIAL@
  mirror: always

# See bug 1710926
- name: browser.download.improvements_to_download_panel
  type: bool
  value: false
  mirror: always

- name: browser.download.sanitize_non_media_extensions
  type: bool
  value: true
  mirror: always

# Image document's automatic image sizing.
- name: browser.enable_automatic_image_resizing
  type: bool
  value: true
  mirror: always

# Image document's click-to-resize.
- name: browser.enable_click_image_resizing
  type: bool
  value: @IS_NOT_ANDROID@
  mirror: always

# The max url length we'll store in history.
#
# The default value is mostly a guess based on various facts:
#
# * IE didn't support urls longer than 2083 chars
# * Sitemaps protocol used to support a maximum of 2048 chars
# * Various SEO guides suggest to not go over 2000 chars
# * Various apps/services are known to have issues over 2000 chars
# * RFC 2616 - HTTP/1.1 suggests being cautious about depending
#   on URI lengths above 255 bytes
#
- name: browser.history.maxUrlLength
  type: uint32_t
  value: 2000
  mirror: always

#ifdef XP_WIN
  # Notify TabUnloader or send the memory pressure if the memory resource
  # notification is signaled AND the available commit space is lower than
  # this value.
-   name: browser.low_commit_space_threshold_mb
    type: RelaxedAtomicUint32
    value: 200
    mirror: always
#endif

# Render animations and videos as a solid color
- name: browser.measurement.render_anims_and_video_solid
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: browser.navigation.requireUserInteraction
  type: bool
  value: false
  mirror: always

# Indicates if about:newtab shows content (enabled) or just blank.
- name: browser.newtabpage.enabled
  type: bool
  value: true
  mirror: always

# Open PDFs in Edge with the --app flag if it is the default.
- name: browser.pdf.launchDefaultEdgeAsApp
  type: bool
  value: true
  mirror: always

# Maximium delay between keystrokes that will be considered typing (milliseconds).
- name: browser.places.interactions.typing_timeout_ms
  type: RelaxedAtomicUint32
  value: 3000
  mirror: always
  
# Force usage of in-memory (rather than file on disk) media cache for video streaming when private browsing
- name: browser.privatebrowsing.forceMediaMemoryCache
  type: bool
  value: false
  mirror: always

# Controls @media -moz-toolbar-prefers-color-scheme.
#
# Returns whether the toolbar is dark (0), light (1), or system (2).
#
# Default to "system", the theming code sets it appropriately.
- name: browser.theme.toolbar-theme
  type: RelaxedAtomicUint32
  value: 2
  mirror: always
  rust: true

# Enable Proton restyle. Requires restart.
- name: browser.proton.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always
  rust: true

- name: browser.proton.places-tooltip.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always
  rust: true

# Blocked plugin content
- name: browser.safebrowsing.blockedURIs.enabled
  type: bool
  value: true
  mirror: always

# Malware protection
- name: browser.safebrowsing.malware.enabled
  type: bool
  value: true
  mirror: always

# Password protection
- name: browser.safebrowsing.passwords.enabled
  type: bool
  value: false
  mirror: always

# Phishing protection
- name: browser.safebrowsing.phishing.enabled
  type: bool
  value: true
  mirror: always

# Maximum size for an array to store the safebrowsing prefixset.
- name: browser.safebrowsing.prefixset_max_array_size
  type: RelaxedAtomicUint32
  value: 512*1024
  mirror: always

# SessionStore prefs
# Maximum number of bytes of DOMSessionStorage data we collect per origin.
- name: browser.sessionstore.dom_storage_limit
  type: uint32_t
  value: 2048
  mirror: always

# Minimal interval between two save operations in milliseconds (while the user is active).
- name: browser.sessionstore.interval
  type: RelaxedAtomicUint32
  value: 15000
  mirror: always

# Causes SessionStore to ignore non-final update messages from
# browser tabs that were not caused by a flush from the parent.
# This is a testing flag and should not be used by end-users.
- name: browser.sessionstore.debug.no_auto_updates
  type: RelaxedAtomicBool
  value: false
  mirror: always

# If set, use DocumentChannel to directly initiate loads entirely
# from parent-process BrowsingContexts
- name: browser.tabs.documentchannel.parent-controlled
  type: bool
  value: false
  mirror: always

- name: browser.tabs.remote.desktopbehavior
  type: bool
  value: false
  mirror: always

- name: browser.tabs.remote.force-paint
  type: bool
  value: true
  mirror: always

# When this pref is enabled document loads with a mismatched
# Cross-Origin-Embedder-Policy header will fail to load
- name: browser.tabs.remote.useCrossOriginEmbedderPolicy
  type: RelaxedAtomicBool
#if !defined(ANDROID)
  value: true
#else
  value: @IS_NIGHTLY_BUILD@
#endif
  mirror: always

# When this pref is enabled top level loads with a mismatched
# Cross-Origin-Opener-Policy header will be loaded in a separate process.
- name: browser.tabs.remote.useCrossOriginOpenerPolicy
  type: RelaxedAtomicBool
#if !defined(ANDROID)
  value: true
#else
  value: @IS_NIGHTLY_BUILD@
#endif
  mirror: always

# When this pref is enabled then we use a separate content process for
# top-level load of file:// URIs
- name: browser.tabs.remote.separateFileUriProcess
  type: RelaxedAtomicBool
#if !defined(ANDROID)
  value: true
#else
  value: false
#endif
  mirror: always

# When this pref is enabled, opaque response is only allowed to enter the
# content process if it's a response for media (audio, image, video), CSS, or
# JavaScript.
- name: browser.opaqueResponseBlocking
  type: RelaxedAtomicBool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

# When true, zooming will be enabled on all sites, even ones that declare
# user-scalable=no.
- name: browser.ui.zoom.force-user-scalable
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: browser.underline_anchors
  type: bool
  value: true
  mirror: always

- name: browser.viewport.desktopWidth
  type: RelaxedAtomicInt32
  value: 980
  mirror: always

- name: browser.visited_color
  type: String
  value: "#551A8B"
  mirror: never

#---------------------------------------------------------------------------
# Prefs starting with "canvas."
#---------------------------------------------------------------------------

# Limit for the canvas image cache. 0 means unlimited.
- name: canvas.image.cache.limit
  type: int32_t
  value: 0
  mirror: always

# Add support for canvas path objects
- name: canvas.path.enabled
  type: bool
  value: true
  mirror: always

- name: canvas.capturestream.enabled
  type: bool
  value: true
  mirror: always

# Is support for CanvasRenderingContext2D.filter enabled?
- name: canvas.filters.enabled
  type: bool
  value: true
  mirror: always

# Provide ability to turn on support for canvas focus rings.
- name: canvas.focusring.enabled
  type: bool
  value: true
  mirror: always

# Is support for CanvasRenderingContext2D's hitRegion APIs enabled?
- name: canvas.hitregions.enabled
  type: bool
  value: false
  mirror: always

# Is support for CanvasRenderingContext2D's createConicGradient API enabled?
- name: canvas.createConicGradient.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Provide ability to turn on support for canvas mozGetAsFile API.
- name: canvas.mozgetasfile.enabled
  type: bool
  value: false
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "channelclassifier."
#---------------------------------------------------------------------------

- name: channelclassifier.allowlist_example
  type: bool
  value: false
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "clipboard."
#---------------------------------------------------------------------------

# Clipboard behavior.
- name: clipboard.autocopy
  type: bool
#if !defined(ANDROID) && !defined(XP_MACOSX) && defined(XP_UNIX)
  value: true
#else
  value: false
#endif
  mirror: always

#ifdef XP_WIN
  # allow to copy clipboard data to Clipboard History/Cloud
  # (used on sensitive data in about:logins and Private Browsing)
-   name: clipboard.copyPrivateDataToClipboardCloudOrHistory
    type: bool
    value: false
    mirror: always
#endif

#---------------------------------------------------------------------------
# Prefs starting with "consoleservice."
#---------------------------------------------------------------------------

#if defined(ANDROID)
  # Disable sending console to logcat on release builds.
-   name: consoleservice.logcat
    type: RelaxedAtomicBool
    value: @IS_NOT_RELEASE_OR_BETA@
    mirror: always
#endif

#---------------------------------------------------------------------------
# Prefs starting with "content."
#---------------------------------------------------------------------------

- name: content.cors.disable
  type: bool
  value: false
  mirror: always

# Back off timer notification after count.
# -1 means never.
- name: content.notify.backoffcount
  type: int32_t
  value: -1
  mirror: always

# Notification interval in microseconds.
# The notification interval has a dramatic effect on how long it takes to
# initially display content for slow connections. The current value
# provides good incremental display of content without causing an increase
# in page load time. If this value is set below 1/10 of a second it starts
# to impact page load performance.
# See bugzilla bug 72138 for more info.
- name: content.notify.interval
  type: int32_t
  value: 120000
  mirror: always

# Do we notify based on time?
- name: content.notify.ontimer
  type: bool
  value: true
  mirror: always

# How many times to deflect in interactive mode.
- name: content.sink.interactive_deflect_count
  type: int32_t
  value: 0
  mirror: always

# How many times to deflect in perf mode.
- name: content.sink.perf_deflect_count
  type: int32_t
  value: 200
  mirror: always

# Parse mode for handling pending events.
# 0 = don't check for pending events
# 1 = don't deflect if there are pending events
# 2 = bail if there are pending events
- name: content.sink.pending_event_mode
  type: int32_t
#ifdef XP_WIN
  value: 1
#else
  value: 0
#endif
  mirror: always

# How often to probe for pending events. 1 = every token.
- name: content.sink.event_probe_rate
  type: int32_t
  value: 1
  mirror: always

# How long to stay off the event loop in interactive mode.
- name: content.sink.interactive_parse_time
  type: int32_t
  value: 3000
  mirror: always

# How long to stay off the event loop in perf mode.
- name: content.sink.perf_parse_time
  type: int32_t
  value: 360000
  mirror: always

#  How long to be in interactive mode after an event.
- name: content.sink.interactive_time
  type: uint32_t
  value: 750000
  mirror: always

# How long to stay in perf mode after initial loading.
- name: content.sink.initial_perf_time
  type: uint32_t
  value: 2000000
  mirror: always

# Should we switch between perf-mode and interactive-mode?
# 0 = Switch
# 1 = Interactive mode
# 2 = Perf mode
- name: content.sink.enable_perf_mode
  type: int32_t
  value: 0
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "converter."
#---------------------------------------------------------------------------

# Whether we include ruby annotation in the text despite whether it
# is requested. This was true because we didn't explicitly strip out
# annotations. Set false by default to provide a better behavior, but
# we want to be able to pref-off it if user doesn't like it.
- name: converter.html2txt.always_include_ruby
  type: bool
  value: false
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "datareporting."
#---------------------------------------------------------------------------

- name: datareporting.healthreport.uploadEnabled
  type: RelaxedAtomicBool
  value: false
  mirror: always
  rust: true

#---------------------------------------------------------------------------
# Prefs starting with "device."
#---------------------------------------------------------------------------

# Is support for the device sensors API enabled?
- name: device.sensors.enabled
  type: bool
  value: true
  mirror: always

# KaiOS-only, see https://bugzilla.mozilla.org/show_bug.cgi?id=1699707#c10
- name: device.sensors.ambientLight.enabled
  type: bool
  value: false
  mirror: always

- name: device.sensors.motion.enabled
  type: bool
  value: true
  mirror: always

- name: device.sensors.orientation.enabled
  type: bool
  value: true
  mirror: always

# KaiOS-only, see https://bugzilla.mozilla.org/show_bug.cgi?id=1699707#c10
- name: device.sensors.proximity.enabled
  type: bool
  value: false
  mirror: always

- name: device.sensors.test.events
  type: bool
  value: false
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "devtools."
#---------------------------------------------------------------------------

# Tells if DevTools have been explicitely enabled by the user. This pref
# allows to disable all features related to DevTools for users that never use
# them. Until bug 1361080 lands, we always consider them enabled.
- name: devtools.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: devtools.console.stdout.chrome
  type: RelaxedAtomicBool
  value: @IS_NOT_MOZILLA_OFFICIAL@
  mirror: always

- name: devtools.console.stdout.content
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: devtools.toolbox.force-chrome-prefs
  type: RelaxedAtomicBool
  value: true
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "docshell."
#---------------------------------------------------------------------------

# Used to indicate whether session history listeners should be notified
# about content viewer eviction. Used only for testing.
- name: docshell.shistory.testing.bfevict
  type: bool
  value: false
  mirror: always

# If true, pages with an opener won't be bfcached.
- name: docshell.shistory.bfcache.require_no_opener
  type: bool
  value: @IS_ANDROID@
  mirror: always

# If true, page with beforeunload or unload event listeners can be bfcached.
- name: docshell.shistory.bfcache.allow_unload_listeners
  type: bool
  value: @IS_ANDROID@
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "dom."
#---------------------------------------------------------------------------

# Whether window.mozPaintCount is exposed to the web.
- name: dom.mozPaintCount.enabled
  type: bool
  value: false
  mirror: always

# Allow cut/copy
- name: dom.allow_cut_copy
  type: bool
  value: true
  mirror: always

- name: dom.allow_XUL_XBL_for_file
  type: bool
  value: false
  mirror: always

# Checks if offscreen animation throttling is enabled.
- name: dom.animations.offscreen-throttling
  type: bool
  value: true
  mirror: always

# Is support for automatically removing replaced filling animations enabled?
- name: dom.animations-api.autoremove.enabled
  type: bool
  value: true
  mirror: always

# Is support for composite operations from the Web Animations API enabled?
- name: dom.animations-api.compositing.enabled
  type: bool
  value: true
  mirror: always

# Is support for the core interfaces of Web Animations API enabled?
- name: dom.animations-api.core.enabled
  type: bool
  value: true
  mirror: always

# Is support for Document.getAnimations() and Element.getAnimations()
# supported?
- name: dom.animations-api.getAnimations.enabled
  type: bool
  value: true
  mirror: always

# Is support for animations from the Web Animations API without 0%/100%
# keyframes enabled?
- name: dom.animations-api.implicit-keyframes.enabled
  type: bool
  value: true
  mirror: always

# Is support for timelines from the Web Animations API enabled?
- name: dom.animations-api.timelines.enabled
  type: bool
  value: true
  mirror: always

# Synchronize transform animations with geometric animations on the
# main thread.
- name: dom.animations.mainthread-synchronization-with-geometric-animations
  type: bool
  value: @IS_NOT_NIGHTLY_BUILD@
  mirror: always

# Is support for AudioWorklet enabled?
- name: dom.audioworklet.enabled
  type: bool
  value: true
  mirror: always

# Is support for Navigator.getBattery enabled?
- name: dom.battery.enabled
  type: bool
  value: true
  mirror: always

# Block multiple external protocol URLs in iframes per single event.
- name: dom.block_external_protocol_in_iframes
  type: bool
  value: true
  mirror: always

# Block Insecure downloads from Secure Origins
- name: dom.block_download_insecure
  type: bool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

# Block all downloads in iframes with the sandboxed attribute
- name: dom.block_download_in_sandboxed_iframes
  type: bool
  value: true
  mirror: always

# Block multiple window.open() per single event.
- name: dom.block_multiple_popups
  type: bool
  value: true
  mirror: always

# The maximum number of popup that is allowed to be opened. Set to -1 for no
# limit.
- name: dom.popup_maximum
  type: int32_t
  value: 20
  mirror: always

# Whether window.location.reload() and window.history.go(0) should be blocked
# if called directly from a window resize event handler.
#
# This used to be necessary long ago to prevent terrible UX when using stuff
# like TypeAheadFind (bug 258917), but it also causes compat issues on mobile
# (bug 1570566).
#
# So for now disable it on Android and Desktop Nightly, to see if we have any
# desktop regression before removing it completely. Note that this means that
# non-nightly RDM behaves different than Android in this case.
- name: dom.block_reload_from_resize_event_handler
  type: bool
#if defined(MOZ_WIDGET_ANDROID) || defined(NIGHTLY_BUILD)
  value: false
#else
  value: true
#endif
  mirror: always

# SW Cache API
- name: dom.caches.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: dom.caches.testing.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Disable capture attribute for input elements; only supported on GeckoView.
- name: dom.capture.enabled
  type: bool
  value: false
  mirror: always

# Allow control characters appear in composition string.
# When this is false, control characters except
# CHARACTER TABULATION (horizontal tab) are removed from
# both composition string and data attribute of compositionupdate
# and compositionend events.
- name: dom.compositionevent.allow_control_characters
  type: bool
  value: false
  mirror: always

# Is support for CSSPseudoElement enabled?
- name: dom.css_pseudo_element.enabled
  type: bool
  value: false
  mirror: always

# After how many seconds we allow external protocol URLs in iframe when not in
# single events
- name: dom.delay.block_external_protocol_in_iframes
  type: uint32_t
  value: 10   # in seconds
  mirror: always

# Whether the above pref has any effect at all.
- name: dom.delay.block_external_protocol_in_iframes.enabled
  type: bool
  value: @IS_NOT_NIGHTLY_BUILD@
  mirror: always

# HTML <dialog> element
- name: dom.dialog_element.enabled
  type: bool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

# Only propagate the open window click permission if the setTimeout() is equal
# to or less than this value.
- name: dom.disable_open_click_delay
  type: int32_t
  value: 1000
  mirror: always

- name: dom.disable_open_during_load
  type: bool
  value: false
  mirror: always

- name: dom.disable_beforeunload
  type: bool
  value: false
  mirror: always

- name: dom.require_user_interaction_for_beforeunload
  type: bool
  value: true
  mirror: always

# If set this to true, `Document.execCommand` may be performed nestedly.
# Otherwise, nested calls just return false.
- name: dom.document.exec_command.nested_calls_allowed
  type: bool
  value: false
  mirror: always

- name: dom.enable_window_print
  type: bool
  value: @IS_NOT_ANDROID@
  mirror: always

# Only intended for fuzzing purposes, this will break mozPrintCallback, etc.
- name: dom.window_print.fuzzing.block_while_printing
  type: bool
  value: false
  mirror: always

- name: dom.element.transform-getters.enabled
  type: bool
  value: false
  mirror: always

- name: dom.mouse_capture.enabled
  type: bool
  value: true
  mirror: always

# Is support for Performance.mozMemory enabled?
- name: dom.enable_memory_stats
  type: bool
  value: false
  mirror: always

# Enable Performance API
# Whether nonzero values can be returned from performance.timing.*
- name: dom.enable_performance
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Enable Performance Observer API
- name: dom.enable_performance_observer
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether resource timing will be gathered and returned by performance.GetEntries*
- name: dom.enable_resource_timing
  type: bool
  value: true
  mirror: always

# Whether event timing will be gathered and returned by performance observer*
- name: dom.enable_event_timing
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether performance.GetEntries* will contain an entry for the active document
- name: dom.enable_performance_navigation_timing
  type: bool
  value: true
  mirror: always

# If this is true, it's allowed to fire "cut", "copy" and "paste" events.
# Additionally, "input" events may expose clipboard content when inputType
# is "insertFromPaste" or something.
- name: dom.event.clipboardevents.enabled
  type: bool
  value: true
  mirror: always

# Whether touch event listeners are passive by default.
- name: dom.event.default_to_passive_touch_listeners
  type: bool
  value: true
  mirror: always

# Whether wheel listeners are passive by default.
- name: dom.event.default_to_passive_wheel_listeners
  type: bool
  value: true
  mirror: always

# Whether WheelEvent should return pixels instead of lines for
# WheelEvent.deltaX/Y/Z, when deltaMode hasn't been checked.
#
# Other browsers don't use line deltas and websites forget to check for it, see
# bug 1392460.
- name: dom.event.wheel-deltaMode-lines.disabled
  type: bool
  value: true
  mirror: always

# Mostly for debugging. Whether we should do the same as
# dom.event.wheel-deltaMode-lines.disabled, but unconditionally rather than
# only when deltaMode hasn't been checked.
- name: dom.event.wheel-deltaMode-lines.always-disabled
  type: bool
  value: false
  mirror: always

# A blocklist (list of domains) for the
# dom.event.wheel-deltaMode-lines.disabled behavior, in case potential
# unforeseen problems with it arrive.
- name: dom.event.wheel-deltaMode-lines.always-enabled
  type: String
  value: ""
  mirror: never

# Whether WheelEvent should expose wheelDelta / wheelDeltaX / wheelDeltaY
- name: dom.event.wheelDelta.enabled
  type: bool
  value: true
  mirror: always

#if defined(XP_MACOSX)
# Whether to disable treating ctrl click as right click
- name: dom.event.treat_ctrl_click_as_right_click.disabled
  type: bool
  value: @IS_NIGHTLY_BUILD@
  mirror: always
#endif

# Whether .offset{X,Y} for events targeted at SVG nodes returns bounds relative
# to the outer SVG.
- name: dom.events.offset-in-svg-relative-to-svg-root
  type: bool
  value: true
  mirror: always

# Enable clipboard readText() and writeText() by default
- name: dom.events.asyncClipboard
  type: bool
  value: true
  mirror: always

# Disable clipboard.read() by default
- name: dom.events.asyncClipboard.read
  type: bool
  value: false
  mirror: always

# Disable ClipboardItem and clipboard.write by default
- name: dom.events.asyncClipboard.clipboardItem
  type: bool
  value: false
  mirror: always

# Should only be enabled in tests.
# Access with Clipboard::IsTestingPrefEnabled().
- name: dom.events.testing.asyncClipboard
  type: bool
  value: false
  mirror: always
  do_not_use_directly: true

# This pref controls whether or not the `protected` dataTransfer state is
# enabled. If the `protected` dataTransfer stae is disabled, then the
# DataTransfer will be read-only whenever it should be protected, and will not
# be disconnected after a drag event is completed.
- name: dom.events.dataTransfer.protected.enabled
  type: bool
  value: false
  mirror: always

# User interaction timer interval, in ms
- name: dom.events.user_interaction_interval
  type: uint32_t
  value: 5000
  mirror: always

# Whether to try to compress touchmove events on IPC layer.
- name: dom.events.compress.touchmove
  type: bool
  value: true
  mirror: always

# In addition to the above IPC layer compresison, allow touchmove
# events to be further coalesced in the child side after they
# are sent.
- name: dom.events.coalesce.touchmove
  type: bool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

# Whether to expose test interfaces of various sorts
- name: dom.expose_test_interfaces
  type: bool
  value: false
  mirror: always

- name: dom.fetchObserver.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Allow the content process to create a File from a path. This is allowed just
# on parent process, on 'file' Content process, or for testing.
- name: dom.file.createInChild
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Support @autocomplete values for form autofill feature.
- name: dom.forms.autocomplete.formautofill
  type: bool
  value: false
  mirror: always

# Only trusted submit event could trigger form submission.
- name: dom.forms.submit.trusted_event_only
  type: bool
  value: false
  mirror: always

# This pref just controls whether we format the number with grouping separator
# characters when the internal value is set or updated. It does not stop the
# user from typing in a number and using grouping separators.
- name: dom.forms.number.grouping
  type: bool
  value: false
  mirror: always

# Whether the Gamepad API is enabled
- name: dom.gamepad.enabled
  type: bool
  value: true
  mirror: always

# Is Gamepad Extension API enabled?
- name: dom.gamepad.extensions.enabled
  type: bool
  value: true
  mirror: always

# Is LightIndicator API enabled in Gamepad Extension API?
- name: dom.gamepad.extensions.lightindicator
  type: bool
  value: false
  mirror: always

# Is MultiTouch API enabled in Gamepad Extension API?
- name: dom.gamepad.extensions.multitouch
  type: bool
  value: false
  mirror: always

# Is Gamepad vibrate haptic feedback function enabled?
- name: dom.gamepad.haptic_feedback.enabled
  type: bool
  value: true
  mirror: always

- name: dom.gamepad.non_standard_events.enabled
  type: bool
  value: @IS_NOT_RELEASE_OR_BETA@
  mirror: always

- name: dom.gamepad.test.enabled
  type: bool
  value: false
  mirror: always

# W3C draft ImageCapture API
- name: dom.imagecapture.enabled
  type: bool
  value: false
  mirror: always

# <img loading="lazy">
#
# See https://github.com/whatwg/html/pull/3752
- name: dom.image-lazy-loading.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# The root margin for image lazy loading, defined as four (value, percentage)
# pairs.
- name: dom.image-lazy-loading.root-margin.top
  type: float
#if defined(EARLY_BETA_OR_EARLIER)
  value: 1000
#else
  value: 300
#endif
  mirror: always

- name: dom.image-lazy-loading.root-margin.top.percentage
  type: bool
  value: false
  mirror: always

- name: dom.image-lazy-loading.root-margin.bottom
  type: float
#if defined(EARLY_BETA_OR_EARLIER)
  value: 1000
#else
  value: 300
#endif
  mirror: always

- name: dom.image-lazy-loading.root-margin.bottom.percentage
  type: bool
  value: false
  mirror: always

- name: dom.image-lazy-loading.root-margin.left
  type: float
#if defined(EARLY_BETA_OR_EARLIER)
  value: 1000
#else
  value: 300
#endif
  mirror: always

- name: dom.image-lazy-loading.root-margin.left.percentage
  type: bool
  value: false
  mirror: always

- name: dom.image-lazy-loading.root-margin.right
  type: float
#if defined(EARLY_BETA_OR_EARLIER)
  value: 1000
#else
  value: 300
#endif
  mirror: always

- name: dom.image-lazy-loading.root-margin.right.percentage
  type: bool
  value: false
  mirror: always

# Enable passing the "storage" option to indexedDB.open.
- name: dom.indexedDB.storageOption.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Enable indexedDB in private browsing mode.
- name: dom.indexedDB.privateBrowsing.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: dom.input_events.beforeinput.enabled
  type: bool
  value: true
  mirror: always

# Whether innerWidth / innerHeight return rounded or fractional sizes.
#
# NOTE(emilio): Fractional sizes are not web-compatible, see the regressions
# from bug 1676843, but we want to expose the fractional sizes (probably in
# another API) one way or another, see [1], so we're keeping the code for the
# time being.
#
# [1]: https://github.com/w3c/csswg-drafts/issues/5260
- name: dom.innerSize.rounded
  type: bool
  value: true
  mirror: always

# Whether we conform to Input Events Level 1 or Input Events Level 2.
# true:  conforming to Level 1
# false: conforming to Level 2
- name: dom.input_events.conform_to_level_1
  type: bool
  value: true
  mirror: always

# Whether we allow BrowsingContextGroup to suspend input events
- name: dom.input_events.canSuspendInBCG.enabled
  type: bool
  value: false
  mirror: always

# Whether we perform a more strict alignment with vsync for input events
- name: dom.input_events.strict_input_vsync_alignment
  type: bool
  value: true
  mirror: always

# Enable not moving the cursor to end when a text input or textarea has .value
# set to the value it already has.  By default, enabled.
- name: dom.input.skip_cursor_move_for_same_value_set
  type: bool
  value: true
  mirror: always

- name: dom.IntersectionObserver.enabled
  type: bool
  value: true
  mirror: always

- name: dom.IntersectionObserverExplicitDocumentRoot.enabled
  type: bool
  value: true
  mirror: always

- name: dom.ipc.cancel_content_js_when_navigating
  type: bool
  value: true
  mirror: always

# How often to check for CPOW timeouts (ms). CPOWs are only timed
# out by the hang monitor.
- name: dom.ipc.cpow.timeout
  type: uint32_t
  value: 500
  mirror: always

#ifdef MOZ_ENABLE_FORKSERVER
- name: dom.ipc.forkserver.enable
  type: bool
  value: false
  mirror: once
#endif

#ifdef MOZ_WIDGET_GTK
#
# Avoid the use of GTK in content processes if possible, by running
# them in headless mode, to conserve resources (e.g., connections to
# the X server).  See the usage in `ContentParent.cpp` for the full
# definition of "if possible".
#
# This does not affect sandbox policies; content processes may still
# dynamically connect to the display server for, e.g., WebGL.
- name: dom.ipc.avoid-gtk
  type: bool
  value: true
  mirror: always
#endif

# Whether or not to collect a paired minidump when force-killing a
# content process.
- name: dom.ipc.tabs.createKillHardCrashReports
  type: bool
  value: @IS_NOT_RELEASE_OR_BETA@
  mirror: once

# Allow Flash async drawing mode in 64-bit release builds.
- name: dom.ipc.plugins.asyncdrawing.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# How long we wait before unloading an idle plugin process.
- name: dom.ipc.plugins.unloadTimeoutSecs
  type: RelaxedAtomicUint32
  value: 30
  mirror: always

- name: dom.ipc.plugins.allow_dxgi_surface
  type: bool
  value: true
  mirror: always

# Enable e10s hang monitoring (slow script checking and plugin hang detection).
- name: dom.ipc.processHangMonitor
  type: bool
  value: true
  mirror: once

# Whether we report such process hangs
- name: dom.ipc.reportProcessHangs
  type: RelaxedAtomicBool
# Don't report hangs in DEBUG builds. They're too slow and often a
# debugger is attached.
#ifdef DEBUG
  value: false
#else
  value: true
#endif
  mirror: always

- name: dom.ipc.tabs.disabled
  type: bool
  value: false
  mirror: always

# Process launch delay (in milliseconds).
- name: dom.ipc.processPrelaunch.delayMs
  type: uint32_t
# This number is fairly arbitrary ... the intention is to put off
# launching another app process until the last one has finished
# loading its content, to reduce CPU/memory/IO contention.
  value: 1000
  mirror: always

- name: dom.ipc.processPrelaunch.startupDelayMs
  type: uint32_t
# delay starting content processes for a short time after browser start
# to provide time for the UI to come up
  value: 1000
  mirror: always

# Process preallocation cache
# Only used in fission; in e10s we use 1 always
- name: dom.ipc.processPrelaunch.fission.number
  type: uint32_t
  value: 3
  mirror: always

# Limit preallocated processes below this memory size (in MB)
- name: dom.ipc.processPrelaunch.lowmem_mb
  type: uint32_t
  value: 4096
  mirror: always

- name: dom.ipc.processPriorityManager.enabled
  type: bool
  value: false
  mirror: always

- name: dom.ipc.processPriorityManager.testMode
  type: bool
  value: false
  mirror: always

- name: dom.ipc.processPriorityManager.backgroundPerceivableGracePeriodMS
  type: uint32_t
#if defined(MOZ_WIDGET_ANDROID) && defined(NIGHTLY_BUILD)
  value: 3000
#else
  value: 0
#endif
  mirror: always

- name: dom.ipc.processPriorityManager.backgroundGracePeriodMS
  type: uint32_t
#if defined(MOZ_WIDGET_ANDROID) && defined(NIGHTLY_BUILD)
  value: 3000
#else
  value: 0
#endif
  mirror: always

# Is support for HTMLElement.autocapitalize enabled?
- name: dom.forms.autocapitalize
  type: bool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

# Support for input type=datetime-local.
- name: dom.forms.datetime-local
  type: bool
  value: @IS_ANDROID@
  mirror: always

# Support for input type=datetime-local widget. Disabled for now.
- name: dom.forms.datetime-local.widget
  type: bool
  value: false
  mirror: always

# Support for input type=month, type=week. By default, disabled.
- name: dom.forms.datetime.others
  type: bool
  value: @IS_ANDROID@
  mirror: always

# Is support for HTMLElement.enterKeyHint enabled?
- name: dom.forms.enterkeyhint
  type: bool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

# Is support for HTMLElement.inputMode enabled?
- name: dom.forms.inputmode
  type: bool
#if defined(ANDROID)
  value: true
#else
  value: @IS_NOT_RELEASE_OR_BETA@
#endif
  mirror: always

# Enable Directory API. By default, disabled.
- name: dom.input.dirpicker
  type: bool
  value: false
  mirror: always

# Whether to allow or disallow web apps to cancel `beforeinput` events caused
# by MozEditableElement#setUserInput() which is used by autocomplete, autofill
# and password manager.
- name: dom.input_event.allow_to_cancel_set_user_input
  type: bool
  value: false
  mirror: always

# How long a content process can take before closing its IPC channel
# after shutdown is initiated.  If the process exceeds the timeout,
# we fear the worst and kill it.
- name: dom.ipc.tabs.shutdownTimeoutSecs
  type: RelaxedAtomicUint32
#if !defined(DEBUG) && !defined(MOZ_ASAN) && !defined(MOZ_VALGRIND) && !defined(MOZ_TSAN)
  value: 20
#else
  value: 0
#endif
  mirror: always

# Whether a native event loop should be used in the content process.
- name: dom.ipc.useNativeEventProcessing.content
  type: RelaxedAtomicBool
#if defined(XP_WIN) || defined(XP_MACOSX)
  value: false
#else
  value: true
#endif
  mirror: always

# If this is true, TextEventDispatcher dispatches keydown and keyup events
# even during composition (keypress events are never fired during composition
# even if this is true).
- name: dom.keyboardevent.dispatch_during_composition
  type: bool
  value: true
  mirror: always

# If this is true, keypress events for non-printable keys are dispatched only
# for event listeners of the system event group in web content.
- name: dom.keyboardevent.keypress.dispatch_non_printable_keys_only_system_group_in_content
  type: bool
  value: true
  mirror: always

# If this is true, "keypress" event's keyCode value and charCode value always
# become same if the event is not created/initialized by JS.
- name: dom.keyboardevent.keypress.set_keycode_and_charcode_to_same_value
  type: bool
  value: true
  mirror: always

# Whether the Large-Allocation header is enabled.
- name: dom.largeAllocationHeader.enabled
  type: bool
  value: true
  mirror: always

- name: dom.largeAllocation.forceEnable
  type: bool
  value: false
  mirror: always

# Whether "W3C Web Manifest" processing is enabled
- name: dom.manifest.enabled
  type: bool
  value: true
  mirror: always

# Enable mapped array buffer by default.
- name: dom.mapped_arraybuffer.enabled
  type: bool
  value: true
  mirror: always

# This pref is used to enable/disable the `document.autoplayPolicy` API which
# returns a enum string which presents current autoplay policy and can change
# overtime based on user session activity.
- name: dom.media.autoplay.autoplay-policy-api
  type: bool
  value: false
  mirror: always

# Media Session API
- name: dom.media.mediasession.enabled
  type: bool
  value: true
  mirror: always

# Number of seconds of very quiet or silent audio before considering the audio
# inaudible.
- name: dom.media.silence_duration_for_audibility
  type: AtomicFloat
  value: 2.0f
  mirror: always

- name: dom.menuitem.enabled
  type: bool
  value: false
  mirror: always

# Enable meta-viewport support in remote APZ-enabled frames.
- name: dom.meta-viewport.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Timeout clamp in ms for timeouts we clamp.
- name: dom.min_timeout_value
  type: RelaxedAtomicInt32
  value: 4
  mirror: always

# Timeout clamp in ms for background windows.
- name: dom.min_background_timeout_value
  type: int32_t
  value: 1000
  mirror: always

# Timeout clamp in ms for background windows when throttling isn't enabled.
- name: dom.min_background_timeout_value_without_budget_throttling
  type: int32_t
  value: 1000
  mirror: always

# Are missing-property use counters for certain DOM attributes enabled?
- name: dom.missing_prop_counters.enabled
  type: bool
  value: true
  mirror: always

# Is support for module scripts (<script type="module">) enabled for content?
- name: dom.moduleScripts.enabled
  type: bool
  value: true
  mirror: always

# Whether we disable triggering mutation events for changes to style
# attribute via CSSOM.
# NOTE: This preference is used in unit tests. If it is removed or its default
# value changes, please update test_sharedMap_static_prefs.js accordingly.
- name: dom.mutation-events.cssom.disabled
  type: bool
  value: true
  mirror: always

# Limit of location change caused by content scripts in a time span per
# BrowsingContext. This includes calls to History and Location APIs.
- name: dom.navigation.locationChangeRateLimit.count
  type: uint32_t
  value: 200
  mirror: always

# Time span in seconds for location change rate limit.
- name: dom.navigation.locationChangeRateLimit.timespan
  type: uint32_t
  value: 10
  mirror: always

# Network Information API
- name: dom.netinfo.enabled
  type: RelaxedAtomicBool
  value: @IS_ANDROID@
  mirror: always

# Whether we should open noopener links in a new process.
- name: dom.noopener.newprocess.enabled
  type: bool
  value: true
  mirror: always

# Whether we shouldn't show an error page for unknown protocols (and should
# show a console warning instead).
- name: dom.no_unknown_protocol_error.enabled
  type: bool
  value: true
  mirror: always

# Is support for Window.paintWorklet enabled?
- name: dom.paintWorklet.enabled
  type: bool
  value: false
  mirror: always

# Enable/disable the PaymentRequest API
- name: dom.payments.request.enabled
  type: bool
  value: false
  mirror: always

# Whether a user gesture is required to call PaymentRequest.prototype.show().
- name: dom.payments.request.user_interaction_required
  type: bool
  value: true
  mirror: always

# Time in milliseconds for PaymentResponse to wait for
# the Web page to call complete().
- name: dom.payments.response.timeout
  type: uint32_t
  value: 5000
  mirror: always

# Enable printing performance marks/measures to log
- name: dom.performance.enable_user_timing_logging
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: dom.performance.children_results_ipc_timeout
  type: uint32_t
  value: 1000
  mirror: always

# Enable notification of performance timing
- name: dom.performance.enable_notify_performance_timing
  type: bool
  value: false
  mirror: always

# Is support for PerformanceTiming.timeToContentfulPaint enabled?
- name: dom.performance.time_to_contentful_paint.enabled
  type: bool
  value: false
  mirror: always

# Is support for PerformanceTiming.timeToDOMContentFlushed enabled?
- name: dom.performance.time_to_dom_content_flushed.enabled
  type: bool
  value: false
  mirror: always

# Is support for PerformanceTiming.timeToFirstInteractive enabled?
- name: dom.performance.time_to_first_interactive.enabled
  type: bool
  value: false
  mirror: always

# Is support for PerformanceTiming.timeToNonBlankPaint enabled?
- name: dom.performance.time_to_non_blank_paint.enabled
  type: bool
  value: false
  mirror: always

# Is support for Permissions.revoke enabled?
- name: dom.permissions.revoke.enable
  type: bool
  value: false
  mirror: always

# Is support for Element.requestPointerLock enabled?
# This is added for accessibility purpose. When user has no way to exit
# pointer lock (e.g. no keyboard available), they can use this pref to
# disable the Pointer Lock API altogether.
- name: dom.pointer-lock.enabled
  type: bool
  value: true
  mirror: always

# re-SAB: Whether to allow postMessage of a SharedArrayBuffer if various
# preconditions related to COOP and COEP are met
- name: dom.postMessage.sharedArrayBuffer.withCOOP_COEP
  type: bool
#if !defined(ANDROID)
  value: true
#else
  value: @IS_NIGHTLY_BUILD@
#endif
  mirror: once

# Overridden in all.js on RELEASE_OR_BETA in order to add the locked attribute.
- name: dom.postMessage.sharedArrayBuffer.bypassCOOP_COEP.insecure.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# This currently only affects XHTML. For XUL the cache is always allowed.
- name: dom.prototype_document_cache.enabled
  type: bool
  value: true
  mirror: always

# Push
- name: dom.push.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Preference that is primarily used for testing of problematic file paths.
# It can also be used for switching between different storage directories, but
# such feature is not officially supported.
- name: dom.quotaManager.storageName
  type: String
  value: "storage"
  mirror: never

# Should we try to load origin information from the cache?
# See bug 1563023 for more details.
- name: dom.quotaManager.loadQuotaFromCache
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Should we check build ID as part of the cache validation?
# When enabled, the cache is invalidated on any upgrade (or downgrade),
# ensuring that changes in how quota usage is calculated can't cause
# inconsistencies at the cost of a slower initialization. Currently, this
# should only be set to false in tests using a packaged profile that inherently
# includes a build id different from the building running the tests. In the
# future this may be set to false if we are confident that we have sufficiently
# thorough schema versioning.
- name: dom.quotaManager.caching.checkBuildId
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Preference that users can set to override temporary storage smart limit
# calculation.
- name: dom.quotaManager.temporaryStorage.fixedLimit
  type: RelaxedAtomicInt32
  value: -1
  mirror: always

# Preference that users can set to override temporary storage smart limit
# calculation.
- name: dom.quotaManager.temporaryStorage.chunkSize
  type: RelaxedAtomicUint32
  value: 10 * 1024
  mirror: always

# A pref that is used to enable testing features.
- name: dom.quotaManager.testing
  type: SequentiallyConsistentAtomicBool
  value: false
  mirror: always

#ifdef XP_WIN
  # Preference that is used to set nsILocalFileWin::useDOSDevicePathSyntax
  # attribute for all local file instances created by QuotaManager and its
  # clients. The value of this preference is cached so changing the preference
  # during runtime has no effect.
  # See bug 1626846 for setting this to false by default.
-   name: dom.quotaManager.useDOSDevicePathSyntax
    type: RelaxedAtomicBool
    value: true
    mirror: always
    do_not_use_directly: true

  # Preference that is used to enable the hack for overrriding xFullPathname in
  # TelemetryVFS.
-   name: dom.quotaManager.overrideXFullPathname
    type: RelaxedAtomicBool
    value: true
    mirror: always
#endif

# How many times we should retry directory removal or renaming if access was
# denied?
- name: dom.quotaManager.directoryRemovalOrRenaming.maxRetries
  type: RelaxedAtomicUint32
#ifdef XP_WIN
  value: 10
#else
  value: 0
#endif
  mirror: always

# How long we should wait between retries (in milliseconds)?
- name: dom.quotaManager.directoryRemovalOrRenaming.delayMs
  type: RelaxedAtomicUint32
  value: 200
  mirror: always

# Reporting API.
- name: dom.reporting.enabled
  type: RelaxedAtomicBool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

- name: dom.reporting.testing.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: dom.reporting.featurePolicy.enabled
  type: RelaxedAtomicBool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

- name: dom.reporting.crash.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: dom.reporting.header.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# In seconds. The timeout to remove not-active report-to endpoints.
- name: dom.reporting.cleanup.timeout
  type: uint32_t
  value: 3600
  mirror: always

# Any X seconds the reports are dispatched to endpoints.
- name: dom.reporting.delivering.timeout
  type: uint32_t
  value: 5
  mirror: always

# How many times the delivering of a report should be tried.
- name: dom.reporting.delivering.maxFailures
  type: uint32_t
  value: 3
  mirror: always

# How many reports should be stored in the report queue before being delivered.
- name: dom.reporting.delivering.maxReports
  type: uint32_t
  value: 100
  mirror: always

# Enable requestIdleCallback API
- name: dom.requestIdleCallback.enabled
  type: bool
  value: true
  mirror: always

# Whether to enable the JavaScript start-up cache. This causes one of the first
# execution to record the bytecode of the JavaScript function used, and save it
# in the existing cache entry. On the following loads of the same script, the
# bytecode would be loaded from the cache instead of being generated once more.
- name: dom.script_loader.bytecode_cache.enabled
  type: bool
  value: true
  mirror: always

# Ignore the heuristics of the bytecode cache, and always record on the first
# visit. (used for testing purposes).

# Choose one strategy to use to decide when the bytecode should be encoded and
# saved. The following strategies are available right now:
#   * -2 : (reader mode) The bytecode cache would be read, but it would never
#          be saved.
#   * -1 : (eager mode) The bytecode would be saved as soon as the script is
#          seen for the first time, independently of the size or last access
#          time.
#   *  0 : (default) The bytecode would be saved in order to minimize the
#          page-load time.
#
# Other values might lead to experimental strategies. For more details, have a
# look at: ScriptLoader::ShouldCacheBytecode function.
- name: dom.script_loader.bytecode_cache.strategy
  type: int32_t
  value: 0
  mirror: always

# Force full parse on any external JS scripts that is being compiled off thread.
- name: dom.script_loader.full_parse
  type: bool
  value: false
  mirror: always

# Is support for decoding external (non-inline) classic or module DOM scripts
# (i.e. anything but workers) as UTF-8, then directly compiling without
# inflating to UTF-16, enabled?
- name: dom.script_loader.external_scripts.utf8_parsing.enabled
  type: bool
  value: true
  mirror: always

# Enable  speculative off main thread parsing of external scripts as
# soon as they are fetched.
- name: dom.script_loader.external_scripts.speculative_omt_parse.enabled
  type: bool
  value: true
  mirror: always

# Speculatively compile non parser inserted scripts
- name: dom.script_loader.external_scripts.speculate_non_parser_inserted.enabled
  type: bool
  value: false
  mirror: always

# Speculatively compile async scripts
- name: dom.script_loader.external_scripts.speculate_async.enabled
  type: bool
  value: false
  mirror: always

# Speculatively compile link preload scripts
- name: dom.script_loader.external_scripts.speculate_link_preload.enabled
  type: bool
  value: false
  mirror: always

- name: dom.securecontext.whitelist_onions
  type: bool
  value: false
  mirror: always

# This pref enables Sec-Fetch-* logic and causes corresponding
# request headers to be set.
- name: dom.security.secFetch.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# This pref enables the featurePolicy header support.
- name: dom.security.featurePolicy.header.enabled
  type: bool
  value: false
  mirror: always

- name: dom.security.featurePolicy.experimental.enabled
  type: bool
  value: false
  mirror: always

# Expose the 'featurePolicy' attribute in document and HTMLIFrameElement
- name: dom.security.featurePolicy.webidl.enabled
  type: bool
  value: false
  mirror: always

# Perform IPC based Principal vetting in ContentParent
- name: dom.security.enforceIPCBasedPrincipalVetting
  type: RelaxedAtomicBool
  value: true
  mirror: always

# For testing purposes only: Flipping this pref to true allows
# to skip the allowlist for about: pages and do not ship with a
# CSP and NS_ASSERT right away.
- name: dom.security.skip_about_page_csp_allowlist_and_assert
  type: RelaxedAtomicBool
  value: false
  mirror: always

# For testing purposes only: Flipping this pref to true allows
# to skip the assertion that every about page ships with a CSP.
- name: dom.security.skip_about_page_has_csp_assert
  type: RelaxedAtomicBool
  value: false
  mirror: always

# For testing purposes only: Flipping this pref to true allows
# to skip the assertion that HTML fragments (e.g. innerHTML) can
# not be used within chrome code or about: pages.
- name: dom.security.skip_html_fragment_assertion
  type: RelaxedAtomicBool
  value: false
  mirror: always

# For testing purposes only; Flipping this pref to true allows
# to skip the assertion that remote scripts can not be loaded
# in system privileged contexts.
- name: dom.security.skip_remote_script_assertion_in_system_priv_context
  type: RelaxedAtomicBool
  value: false
  mirror: always

# If true, all content requests will get upgraded to HTTPS://
# (some Firefox functionality requests, like OCSP will not be affected)
- name: dom.security.https_only_mode
  type: RelaxedAtomicBool
  value: false
  mirror: always

# If true, all content requests in Private Browsing Mode will get
# upgraded to HTTPS://. (If dom.security.https_only_mode is set
# to true then this pref has no effect)
- name: dom.security.https_only_mode_pbm
  type: RelaxedAtomicBool
  value: false
  mirror: always

# If true, sends http background request for top-level sites to
# counter long timeouts.
- name: dom.security.https_only_mode_send_http_background_request
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Time limit, in milliseconds, before sending the http background
# request for HTTPS-Only and HTTPS-First
- name: dom.security.https_only_fire_http_request_background_timer_ms
  type: RelaxedAtomicUint32
  value: 3000
  mirror: always

# If true, tries to break upgrade downgrade cycles where https-only tries
# to upgrad ethe connection, but the website tries to downgrade again.
- name: dom.security.https_only_mode_break_upgrade_downgrade_endless_loop
  type: RelaxedAtomicBool
  value: true
  mirror: always

# If true and HTTPS-only mode is enabled, requests
# to local IP addresses are also upgraded
- name: dom.security.https_only_mode.upgrade_local
  type: RelaxedAtomicBool
  value: false
  mirror: always

# If true and HTTPS-only mode is enabled, requests
# to .onion hosts are also upgraded
- name: dom.security.https_only_mode.upgrade_onion
  type: RelaxedAtomicBool
  value: false
  mirror: always

# WARNING: Don't ever update that pref manually! It is only used
# for telemetry purposes and allows to reason about retention of
# the pref dom.security.https_only_mode from above.
- name: dom.security.https_only_mode_ever_enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# WARNING: Don't ever update that pref manually! It is only used
# for telemetry purposes and allows to reason about retention of
# the pref dom.security.https_only_mode_pbm from above.
- name: dom.security.https_only_mode_ever_enabled_pbm
  type: RelaxedAtomicBool
  value: false
  mirror: always

# If true checks for secure www connections when https fails
# and gives the user suggestions on the error page
- name: dom.security.https_only_mode_error_page_user_suggestions
  type: RelaxedAtomicBool
  value: false
  mirror: always

# If true, top-level request will get upgraded to HTTPS and
# downgraded again if the request failed.
- name: dom.security.https_first
  type: RelaxedAtomicBool
  value: false
  mirror: always

# If true, top-level requests in Private Browsing Mode will get
# upgraded to HTTPS. (If dom.security.https_first
# is set to true then this pref has no effect)
- name: dom.security.https_first_pbm
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: dom.security.unexpected_system_load_telemetry_enabled
  type: bool
  value: true
  mirror: always

# pref controls `Sanitizer` API being exposed
- name: dom.security.sanitizer.enabled
  type: bool
  value: false
  mirror: always

# Whether or not selection events on text controls are enabled.
- name: dom.select_events.textcontrols.enabled
  type: bool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

- name: dom.separate_event_queue_for_post_message.enabled
  type: bool
  value: true
  mirror: always

- name: dom.arena_allocator.enabled
  type: bool
  value: true
  mirror: once

- name: dom.serviceWorkers.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: dom.serviceWorkers.navigationPreload.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Mitigates ServiceWorker navigation faults by bypassing the ServiceWorker on
# navigation faults.  This is more extensive than just resetting interception
# because we also mark the page as uncontrolled so that subresources will not
# go to the ServiceWorker either.
- name: dom.serviceWorkers.mitigations.bypass_on_fault
  type: bool
  value: true
  mirror: always

# Additional ServiceWorker navigation mitigation control to unregister the
# ServiceWorker after multiple faults are encountered. The mitigation is
# disabled when this is set to zero, otherwise this is the number of faults that
# need to occur for a specific ServiceWorker before it will be unregistered.
- name: dom.serviceWorkers.mitigations.navigation_fault_threshold
  type: uint32_t
  value: 3
  mirror: always

- name: dom.serviceWorkers.testing.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: dom.workers.serialized-sab-access
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Whether automatic storage access granting heuristics should be turned on.
- name: dom.storage_access.auto_grants
  type: bool
  value: true
  mirror: always

- name: dom.storage_access.auto_grants.delayed
  type: bool
  value: true
  mirror: always

# Storage-access API.
- name: dom.storage_access.enabled
  type: bool
  value: false
  mirror: always

# The maximum number of origins that a given third-party tracker is allowed
# to have concurrent access to before the user is presented with a storage
# access prompt.  Only effective when the auto_grants pref is turned on.
- name: dom.storage_access.max_concurrent_auto_grants
  type: int32_t
  value: 5
  mirror: always

# Enable Storage API for all platforms except Android.
- name: dom.storageManager.enabled
  type: RelaxedAtomicBool
  value: @IS_NOT_ANDROID@
  mirror: always

# Should we abort LocalStorage requests when a sync message from parent is
# detected?
#
# LocalStorage is a synchronous API involving sync IPC from the child to the
# parent. Accessibility interfaces currently also involve different forms of
# synchronous parent-to-child communication. (See bug 1516136 comment 11 and
# comment 15.) Although LocalStorage NextGen no longer needs to consult the
# main thread, thereby eliminating the possibility of deadlock, the browser is
# very complex and so we have retained a fail-safe mechanism that will cause
# blocking LocalStorage operations to abort on synchronous IPC from the parent
# to the child.
#
# We are disabling this fail-safe mechanism because it is fundamentally visible
# to content when activated. When we abort the synchronous LocalStorage
# operation we throw an error which has the potential to break web content.
# This is not a hypothetical. In bug 1574569 content broke due to accessibility
# path aborting the LS call, but the LS call didn't need to abort because it
# was not at risk of deadlock.
#
# But we are retaining the preference in the event that regressions occur
# anywhere in the code-base that could cause a cascade that would result in
# deadlock. (There have been logic bugs in components that resulted in
# PBackground synchronously blocking in a way that could result in deadlock.)
# This allows us to re-enable the fail-safe with only a pref flip.
- name: dom.storage.abort_on_sync_parent_to_child_messages
  type: bool
  value: false
  mirror: always

# LocalStorage data limit as determined by summing up the lengths of all string
# keys and values. This is consistent with the legacy implementation and other
# browser engines. This value should really only ever change in unit testing
# where being able to lower it makes it easier for us to test certain edge
# cases. Measured in KiBs.
- name: dom.storage.default_quota
  type: RelaxedAtomicUint32
  # Only allow relatively small amounts of data since performance of the
  # synchronous IO is very bad. We are enforcing simple per-origin quota only.
  value: 5 * 1024
  mirror: always

# Per-site quota for legacy LocalStorage implementation.
- name: dom.storage.default_site_quota
  type: RelaxedAtomicUint32
  value: 25 * 1024
  mirror: always

# Whether or not LSNG (Next Generation Local Storage) is enabled.
# See bug 1517090 for enabling this on Nightly.
# See bug 1534736 for changing it to EARLY_BETA_OR_EARLIER.
# See bug 1539835 for enabling this unconditionally.
# See bug 1619948 for changing it back to EARLY_BETA_OR_EARLIER.
- name: dom.storage.next_gen
  type: RelaxedAtomicBool
  value: @IS_EARLY_BETA_OR_EARLIER@
  mirror: always
  do_not_use_directly: true

# Is support for Storage test APIs enabled?
- name: dom.storage.testing
  type: bool
  value: false
  mirror: always

# For area and anchor elements with target=_blank and no rel set to
# opener/noopener.
- name: dom.targetBlankNoOpener.enabled
  type: bool
  value: true
  mirror: always

# Is support for Selection.GetRangesForInterval enabled?
- name: dom.testing.selection.GetRangesForInterval
  type: bool
  value: false
  mirror: always

- name: dom.testing.structuredclonetester.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: dom.testing.sync-content-blocking-notifications
  type: bool
  value: false
  mirror: always

- name: dom.textMetrics.actualBoundingBox.enabled
  type: bool
  value: true
  mirror: always

- name: dom.textMetrics.baselines.enabled
  type: bool
  value: false
  mirror: always

- name: dom.textMetrics.emHeight.enabled
  type: bool
  value: false
  mirror: always

- name: dom.textMetrics.fontBoundingBox.enabled
  type: bool
  value: false
  mirror: always

# Time (in ms) that it takes to regenerate 1ms.
- name: dom.timeout.background_budget_regeneration_rate
  type: int32_t
  value: 100
  mirror: always

# Time (in ms) that it takes to regenerate 1ms.
- name: dom.timeout.foreground_budget_regeneration_rate
  type: int32_t
  value: 1
  mirror: always

# Maximum value (in ms) for the background budget. Only valid for
# values greater than 0.
- name: dom.timeout.background_throttling_max_budget
  type: int32_t
  value: 50
  mirror: always

# Maximum value (in ms) for the foreground budget. Only valid for
# values greater than 0.
- name: dom.timeout.foreground_throttling_max_budget
  type: int32_t
  value: -1
  mirror: always

# The maximum amount a timeout can be delayed by budget throttling.
- name: dom.timeout.budget_throttling_max_delay
  type: int32_t
  value: 15000
  mirror: always

# Turn on budget throttling by default.
- name: dom.timeout.enable_budget_timer_throttling
  type: bool
  value: true
  mirror: always

# Should we defer timeouts and intervals while loading a page.  Released
# on Idle or when the page is loaded.
- name: dom.timeout.defer_during_load
  type: bool
  value: true
  mirror: always

# Maximum amount of time in milliseconds consecutive setTimeout()/setInterval()
# callback are allowed to run before yielding the event loop.
- name: dom.timeout.max_consecutive_callbacks_ms
  type: uint32_t
  value: 4
  mirror: always

# Maximum deferral time for setTimeout/Interval in milliseconds
- name: dom.timeout.max_idle_defer_ms
  type: uint32_t
  value: 10*1000
  mirror: always

# Delay in ms from document load until we start throttling background timeouts.
- name: dom.timeout.throttling_delay
  type: int32_t
  value: 30000
  mirror: always

# UDPSocket API
- name: dom.udpsocket.enabled
  type: bool
  value: false
  mirror: always

# Time limit, in milliseconds, for user gesture transient activation.
- name: dom.user_activation.transient.timeout
  type: uint32_t
  value: 5000
  mirror: always

# Whether to shim a Components object on untrusted windows.
- name: dom.use_components_shim
  type: bool
  value: @IS_NOT_NIGHTLY_BUILD@
  mirror: always

- name: dom.vibrator.enabled
  type: bool
  value: true
  mirror: always

- name: dom.vibrator.max_vibrate_ms
  type: RelaxedAtomicUint32
  value: 10000
  mirror: always

- name: dom.vibrator.max_vibrate_list_len
  type: RelaxedAtomicUint32
  value: 128
  mirror: always

# Is support for Window.visualViewport enabled?
- name: dom.visualviewport.enabled
  type: bool
  value: true
  mirror: always

# Is support for WebVR APIs enabled?
# Disabled everywhere, but not removed.
- name: dom.vr.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Should VR sessions always be reported as supported, without first
# checking for VR runtimes?  This will prevent permission prompts
# from being suppressed on machines without VR runtimes and cause
# navigatior.xr.isSessionSupported to always report that immersive-vr
# is supported.
- name: dom.vr.always_support_vr
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Should AR sessions always be reported as supported, without first
# checking for AR runtimes?  This will prevent permission prompts
# from being suppressed on machines without AR runtimes and cause
# navigatior.xr.isSessionSupported to always report that immersive-ar
# is supported.
- name: dom.vr.always_support_ar
  type: RelaxedAtomicBool
  value: false
  mirror: always

# It is often desirable to automatically start vr presentation when
# a user puts on the VR headset.  This is done by emitting the
# Window.vrdisplayactivate event when the headset's sensors detect it
# being worn.  This can result in WebVR content taking over the headset
# when the user is using it outside the browser or inadvertent start of
# presentation due to the high sensitivity of the proximity sensor in some
# headsets, so it is off by default.
- name: dom.vr.autoactivate.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Minimum number of milliseconds that the browser will wait before
# attempting to poll again for connected VR controllers.  The browser
# will not attempt to poll for VR controllers until it needs to use them.
- name: dom.vr.controller.enumerate.interval
  type: RelaxedAtomicInt32
  value: 1000
  mirror: always

# The threshold value of trigger inputs for VR controllers.
- name: dom.vr.controller_trigger_threshold
  type: AtomicFloat
  value: 0.1f
  mirror: always

# Minimum number of milliseconds that the browser will wait before
# attempting to poll again for connected VR displays.  The browser
# will not attempt to poll for VR displays until it needs to use
# them, such as when detecting a WebVR site.
- name: dom.vr.display.enumerate.interval
  type: RelaxedAtomicInt32
  value: 5000
  mirror: always

# The number of milliseconds since last frame start before triggering a new
# frame. When content is failing to submit frames on time or the lower level
# VR platform APIs are rejecting frames, it determines the rate at which RAF
# callbacks will be called.
- name: dom.vr.display.rafMaxDuration
  type: RelaxedAtomicUint32
  value: 50
  mirror: always

# Minimum number of milliseconds the browser will wait before attempting
# to re-start the VR service after an enumeration returned no devices.
- name: dom.vr.external.notdetected.timeout
  type: RelaxedAtomicInt32
  value: 60000
  mirror: always

# Minimum number of milliseconds the browser will wait before attempting
# to re-start the VR service after a VR API (eg, OpenVR or Oculus)
# requests that we shutdown and unload its libraries.
# To ensure that we don't interfere with VR runtime software auto-updates,
# we will not attempt to re-load the service until this timeout has elapsed.
- name: dom.vr.external.quit.timeout
  type: RelaxedAtomicInt32
  value: 10000
  mirror: always

# Minimum number of milliseconds that the VR session will be kept
# alive after the browser and content no longer are using the
# hardware.  If a VR multitasking environment, this should be set
# very low or set to 0.
- name: dom.vr.inactive.timeout
  type: RelaxedAtomicInt32
  value: 5000
  mirror: always

# Maximum number of milliseconds the browser will wait for content to call
# VRDisplay.requestPresent after emitting vrdisplayactivate during VR
# link traversal.  This prevents a long running event handler for
# vrdisplayactivate from later calling VRDisplay.requestPresent, which would
# result in a non-responsive browser in the VR headset.
- name: dom.vr.navigation.timeout
  type: RelaxedAtomicInt32
  value: 5000
  mirror: always

# Oculus device
- name: dom.vr.oculus.enabled
  type: RelaxedAtomicBool
#if defined(HAVE_64BIT_BUILD) && !defined(ANDROID)
  # We are only enabling WebVR by default on 64-bit builds (Bug 1384459).
  value: true
#else
  # On Android, this pref is irrelevant.
  value: false
#endif
  mirror: always

# When enabled, Oculus sessions may be created with the ovrInit_Invisible
# flag if a page is using tracking but not presenting.  When a page
# begins presenting VR frames, the session will be re-initialized without
# the flag.  This eliminates the "Firefox not responding" warnings in
# the headset, but might not be compatible with all versions of the Oculus
# runtime.
- name: dom.vr.oculus.invisible.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Minimum number of milliseconds after content has stopped VR presentation
# before the Oculus session is re-initialized to an invisible / tracking
# only mode.  If this value is too high, users will need to wait longer
# after stopping WebVR presentation before automatically returning to the
# Oculus home interface.  (They can immediately return to the Oculus Home
# interface through the Oculus HUD without waiting this duration)
# If this value is too low, the Oculus Home interface may be visible
# momentarily during VR link navigation.
- name: dom.vr.oculus.present.timeout
  type: RelaxedAtomicInt32
  value: 500
  mirror: always

# OpenVR device
- name: dom.vr.openvr.enabled
  type: RelaxedAtomicBool
#if !defined(HAVE_64BIT_BUILD) && !defined(ANDROID)
  # We are only enabling WebVR by default on 64-bit builds (Bug 1384459).
  value: false
#elif defined(XP_WIN) || defined(XP_MACOSX)
  # We enable OpenVR by default for Windows and macOS.
  value: true
#else
  # See Bug 1310663 (Linux).  On Android, this pref is irrelevant.
  value: false
#endif
  mirror: always

# OSVR device
- name: dom.vr.osvr.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Pose prediction reduces latency effects by returning future predicted HMD
# poses to callers of the WebVR API.  This currently only has an effect for
# Oculus Rift on SDK 0.8 or greater.
- name: dom.vr.poseprediction.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Enable a separate process for VR module.
- name: dom.vr.process.enabled
  type: bool
#if defined(XP_WIN)
  value: true
#else
  value: false
#endif
  mirror: once

- name: dom.vr.process.startup_timeout_ms
  type: int32_t
  value: 5000
  mirror: once

# Puppet device, used for simulating VR hardware within tests and dev tools.
- name: dom.vr.puppet.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Starting VR presentation is only allowed within a user gesture or event such
# as VRDisplayActivate triggered by the system. dom.vr.require-gesture allows
# this requirement to be disabled for special cases such as during automated
# tests or in a headless kiosk system.
- name: dom.vr.require-gesture
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Is support for WebXR APIs enabled?
- name: dom.vr.webxr.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

#ifdef XP_WIN
  # Control firing WidgetMouseEvent by handling Windows pointer messages or
  # mouse messages.
-   name: dom.w3c_pointer_events.dispatch_by_pointer_messages
    type: bool
    value: @IS_NIGHTLY_BUILD@
    mirror: always

-   name: dom.w3c_pointer_events.scroll_by_pen.enabled
    type: bool
    value: true
    mirror: always
#endif

# If the value is >= 0, it will be used for max touch points in child processes.
- name: dom.maxtouchpoints.testing.value
  type: int32_t
  value: -1
  mirror: always

# W3C pointer events draft.
- name: dom.w3c_pointer_events.implicit_capture
  type: bool
  value: true
  mirror: always

# In case Touch API is enabled, this pref controls whether to support
# ontouch* event handlers, document.createTouch, document.createTouchList and
# document.createEvent("TouchEvent").
- name: dom.w3c_touch_events.legacy_apis.enabled
  type: bool
  value: @IS_ANDROID@
  mirror: always

# W3C touch events
# 0 - disabled, 1 - enabled, 2 - autodetect
# Autodetection is currently only supported on Windows and GTK3 (and assumed on
# Android).
- name: dom.w3c_touch_events.enabled
  type: int32_t
#if defined(XP_MACOSX)
  value: 0
#else
  value: 2
#endif
  mirror: always

# Is support for the Web Audio API enabled?
- name: dom.webaudio.enabled
  type: bool
  value: true
  mirror: always

- name: dom.webkitBlink.dirPicker.enabled
  type: RelaxedAtomicBool
  value: @IS_NOT_ANDROID@
  mirror: always

# NOTE: This preference is used in unit tests. If it is removed or its default
# value changes, please update test_sharedMap_static_prefs.js accordingly.
- name: dom.webcomponents.shadowdom.report_usage
  type: bool
  value: false
  mirror: always

# Is support for form-associated custom element enabled?
- name: dom.webcomponents.formAssociatedCustomElement.enabled
  type: bool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

# Is support for the Web GPU API enabled?
- name: dom.webgpu.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Is support for HTMLInputElement.webkitEntries enabled?
- name: dom.webkitBlink.filesystem.enabled
  type: bool
  value: @IS_NOT_ANDROID@
  mirror: always

# Whether the WebMIDI API is enabled
- name: dom.webmidi.enabled
  type: bool
  value: false
  mirror: always

- name: dom.webnotifications.allowinsecure
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: dom.webnotifications.allowcrossoriginiframe
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: dom.webnotifications.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: dom.webnotifications.requireuserinteraction
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: dom.webnotifications.requireinteraction.enabled
  type: RelaxedAtomicBool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

- name: dom.webnotifications.silent.enabled
  type: RelaxedAtomicBool
#if defined(MOZ_WIDGET_ANDROID)
  value: @IS_NIGHTLY_BUILD@
#else
  value: false
#endif
  mirror: always

- name: dom.webnotifications.vibrate.enabled
  type: RelaxedAtomicBool
#if defined(MOZ_WIDGET_ANDROID)
  value: @IS_NIGHTLY_BUILD@
#else
  value: false
#endif
  mirror: always

- name: dom.webnotifications.serviceworker.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Is support for Window.event enabled?
- name: dom.window.event.enabled
  type: bool
  value: true
  mirror: always

- name: dom.window.history.async
  type: bool
  value: true
  mirror: always

# Enable the "noreferrer" feature argument for window.open()
- name: dom.window.open.noreferrer.enabled
  type: bool
  value: true
  mirror: always

- name: dom.window.content.untrusted.enabled
  type: bool
  value: @IS_NOT_EARLY_BETA_OR_EARLIER@
  mirror: always

- name: dom.window.clientinformation.enabled
  type: bool
  value: true
  mirror: always

- name: dom.window.sidebar.enabled
  type: bool
  value: @IS_NOT_EARLY_BETA_OR_EARLIER@
  mirror: always

- name: dom.worker.canceling.timeoutMilliseconds
  type: RelaxedAtomicUint32
  value: 30000    # 30 seconds
  mirror: always

# Is support for compiling DOM worker scripts directly from UTF-8 (without ever
# inflating to UTF-16) enabled?
- name: dom.worker.script_loader.utf8_parsing.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: dom.worker.use_medium_high_event_queue
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Enables the dispatching of console log events from worker threads to the
# main-thread.
- name: dom.worker.console.dispatch_events_to_main_thread
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: dom.workers.testing.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: dom.worklet.enabled
  type: bool
  value: true
  mirror: always

# Enable content type normalization of XHR uploads via MIME Sniffing standard
- name: dom.xhr.standard_content_type_normalization
  type: RelaxedAtomicBool
  value: true
  mirror: always

# When this pref is set, parent documents may consider child iframes have
# loaded while they are still loading.
- name: dom.cross_origin_iframes_loaded_in_background
  type: bool
  value: false
  mirror: always

# WebIDL test prefs.
- name: dom.webidl.test1
  type: bool
  value: true
  mirror: always
- name: dom.webidl.test2
  type: bool
  value: true
  mirror: always

- name: dom.webidl.crosscontext_hasinstance.enabled
  type: RelaxedAtomicBool
  value: @IS_NOT_NIGHTLY_BUILD@
  mirror: always

# WebShare API - exposes navigator.share()
- name: dom.webshare.enabled
  type: bool
  value: false
  mirror: always

# WebShare API - allows WebShare without user interaction (for tests only).
- name: dom.webshare.requireinteraction
  type: bool
  value: true
  mirror: always

# about:home and about:newtab include remote snippets that contain arbitrarily
# placed anchor tags in their content; we want sanitization to be turned off
# in order to render them correctly
- name: dom.about_newtab_sanitization.enabled
  type: bool
  value: false
  mirror: always

# Hide the confirm dialog when a POST request is reloaded.
- name: dom.confirm_repost.testing.always_accept
  type: bool
  value: false
  mirror: always

# Whether we should suspend inactive tabs or not
- name: dom.suspend_inactive.enabled
  type: bool
  value: @IS_ANDROID@
  mirror: always

# The following three prefs control the maximum script run time before slow
# script warning.

# Controls the time that a content script can run before showing a
# notification.
- name: dom.max_script_run_time
  type: int32_t
  value: 10
  mirror: always

# Controls whether we want to wait for user input before surfacing notifying
# the parent process about a long-running script.
- name: dom.max_script_run_time.require_critical_input
  type: bool
# On desktop, we don't want to annoy the user with a notification if they're
# not interacting with the browser. On Android however, we automatically
# terminate long-running scripts, so we want to make sure we don't get in the
# way of that by waiting for input.
#if defined(MOZ_WIDGET_ANDROID)
  value: false
#else
  value: true
#endif
  mirror: always

- name: dom.max_chrome_script_run_time
  type: int32_t
  value: 0
  mirror: always

- name: dom.max_ext_content_script_run_time
  type: int32_t
  value: 5
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "editor"
#---------------------------------------------------------------------------

# Allow or disallow to delete `<hr>` element when caret is at start of
# following line of the element.  If false, Backspace from start of following
# line of an `<hr>` element causes moving caret to immediatly after the `<hr>`
# element, and then, another Backspace can delete it.
- name: editor.hr_element.allow_to_delete_from_following_line
  type: bool
  value: false
  mirror: always

# Delay to mask last input character in password fields.
# If negative value, to use platform's default behavior.
# If 0, no delay to mask password.
# Otherwise, password fields unmask last input character(s) during specified
# time (in milliseconds).
- name: editor.password.mask_delay
  type: int32_t
  value: -1
  mirror: always

# Set to true when you test mask_delay of password editor.  If this is set
# to true, "MozLastInputMasked" is fired when last input characters are
# masked by timeout.
- name: editor.password.testing.mask_delay
  type: bool
  value: false
  mirror: always

# General prefs for editor, indicating whether Gecko-specific editing UI is
# enabled by default. Those UIs are not implemented by any other browsers.  So,
# only Firefox users can change some styles with them. This means that Firefox
# users may get unexpected result of some web apps if they assume that users
# cannot change such styles.
- name: editor.resizing.enabled_by_default
  type: bool
  value: false
  mirror: always
- name: editor.inline_table_editing.enabled_by_default
  type: bool
  value: false
  mirror: always
- name: editor.positioning.enabled_by_default
  type: bool
  value: false
  mirror: always

# Whether user pastes should be truncated.
- name: editor.truncate_user_pastes
  type: bool
  value: true
  mirror: always

# How line breakers are treated in single line editor:
# * 0: Only remove the leading and trailing newlines.
# * 1: Remove the first newline and all characters following it.
# * 2: Replace newlines with spaces (default of Firefox).
# * 3: Remove newlines from the string.
# * 4: Replace newlines with commas (default of Thunderbird).
# * 5: Collapse newlines and surrounding white space characters and
#      remove them from the string.
# Other values are treated as 1.
- name: editor.singleLine.pasteNewlines
  type: int32_t
  value: 2
  mirror: always

# Whether enabling blink compatible white-space normalizer or keep using
# Gecko's traditional white-space normalizer.
- name: editor.white_space_normalization.blink_compatible
  type: bool
  value: false
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "extensions."
#---------------------------------------------------------------------------

# Whether the background.service_worker in the extension manifest.json file
# is enabled.
- name: extensions.backgroundServiceWorker.enabled
  type: bool
  value: false
  mirror: once

# Whether the extensions can register a service worker on its own.
# NOTE: WebExtensions Framework ability to register a background service worker
# is not controlled by this pref, only the extension code ability to use
# navigator.serviceWorker.register is locked behind this pref.
- name: extensions.serviceWorkerRegister.allowed
  type: bool
  value: false
  mirror: always

# This pref governs whether we run webextensions in a separate process (true)
# or the parent/main process (false)
- name: extensions.webextensions.remote
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Whether to expose the MockExtensionAPI test interface in tests.
# The interface MockExtensionAPI doesn't represent a real extension API,
# it is only available in test and does include a series of cases useful
# to test the API request handling without tying the unit test to a
# specific WebExtensions API.
- name: extensions.webidl-api.expose_mock_interface
  type: RelaxedAtomicBool
  value: false
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "findbar."
#---------------------------------------------------------------------------

- name: findbar.modalHighlight
  type: bool
  value: false
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "fission."
#---------------------------------------------------------------------------

# Whether to enable Fission in new windows by default.
# IMPORTANT: This preference should *never* be checked directly, since any
# session can contain a mix of Fission and non-Fission windows. Instead,
# callers should check whether the relevant nsILoadContext has the
# `useRemoteSubframes` flag set.
# Callers which cannot use `useRemoteSubframes` must use
# `Services.appinfo.fissionAutostart` or `mozilla::FissionAutostart()` to check
# if fission is enabled by default.
- name: fission.autostart
  type: bool
  value: false
  mirror: never

# Prefs used by normandy to orchestrate the fission experiment. For more
# details, see the comments in nsAppRunner.cpp.
- name: fission.experiment.enrollmentStatus
  type: uint32_t
  value: 0
  mirror: never

- name: fission.experiment.startupEnrollmentStatus
  type: uint32_t
  value: 0
  mirror: never

# This pref has no effect within fission windows, it only controls the
# behaviour within non-fission windows. If true, preserve browsing contexts
# between process swaps.
- name: fission.preserve_browsing_contexts
  type: bool
  value: true
  mirror: always

# Store the session history in the parent process, and access it over IPC
# from the child processes.
- name: fission.sessionHistoryInParent
  type: bool
  value: false
  mirror: once
  do_not_use_directly: true

# If session history is stored in the parent process, enable bfcache for it.
- name: fission.bfcacheInParent
  type: bool
  value: true
  mirror: always
  do_not_use_directly: true

# Allow renaming of process names to the origin on nightly
# Setting this pref creates a privacy leak, but helps greatly with
# debugging
- name: fission.processOriginNames
  type: bool
  value: false
  mirror: always

# If true, allow process-switching documents loaded by <object> and <embed>
# elements into a remote process.
# NOTE: This pref has no impact outside of windows with the
# `useRemoteSubframes` flag set.
- name: fission.remoteObjectEmbed
  type: bool
  value: true
  mirror: always

# If true, show option for opening a non-Fission window in a menu, when Fission
# is enabled.
- name: fission.openNonFissionWindowOption
  type: bool
  value: false
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "font."
#---------------------------------------------------------------------------

# A value greater than zero enables font size inflation for
# pan-and-zoom UIs, so that the fonts in a block are at least the size
# that, if a block's width is scaled to match the device's width, the
# fonts in the block are big enough that at most the pref value ems of
# text fit in *the width of the device*.
#
# When both this pref and the next are set, the larger inflation is used.
- name: font.size.inflation.emPerLine
  type: uint32_t
  value: 0
  mirror: always

# A value greater than zero enables font size inflation for
# pan-and-zoom UIs, so that if a block's width is scaled to match the
# device's width, the fonts in a block are at least the given font size.
# The value given is in twips, i.e., 1/20 of a point, or 1/1440 of an inch.
#
# When both this pref and the previous are set, the larger inflation is used.
- name: font.size.inflation.minTwips
  type: uint32_t
  value: 0
  mirror: always

# In products with multi-mode pan-and-zoom and non-pan-and-zoom UIs,
# this pref forces font inflation to always be enabled in all modes.
# That is, any heuristics used to detect pan-and-zoom
# vs. non-pan-and-zoom modes are disabled and all content is treated
# as pan-and-zoom mode wrt font inflation.
#
# This pref has no effect if font inflation is not enabled through
# either of the prefs above.  It has no meaning in single-mode UIs.
- name: font.size.inflation.forceEnabled
  type: bool
  value: false
  mirror: always

# In products with multi-mode pan-and-zoom and non-pan-and-zoom UIs,
# this pref disables font inflation in master-process contexts where
# existing heuristics can't be used determine enabled-ness.
#
# This pref has no effect if font inflation is not enabled through
# either of the prefs above.  The "forceEnabled" pref above overrides
# this pref.
- name: font.size.inflation.disabledInMasterProcess
  type: bool
  value: false
  mirror: always

# Defines the font size inflation mapping intercept parameter.
#
# Font size inflation computes a minimum font size, m, based on
# other preferences (see font.size.inflation.minTwips and
# font.size.inflation.emPerLine, above) and the width of the
# frame in which the text resides. Using this minimum, a specified
# font size, s, is mapped to an inflated font size, i, using an
# equation that varies depending on the value of the font size
# inflation mapping intercept parameter, P.
#
# If the intercept parameter is negative, then the following mapping
# function is used:
#
# i = m + s
#
# If the intercept parameter is non-negative, then the mapping function
# is a function such that its graph meets the graph of i = s at the
# point where both i and s are (1 + P/2) * m for values of s that are
# large enough. This means that when s=0, i is always equal to m.
- name: font.size.inflation.mappingIntercept
  type: int32_t
  value: 1
  mirror: always

# Since the goal of font size inflation is to avoid having to
# repeatedly scroll side to side to read a block of text, and there are
# a number of page layouts where a relatively small chunk of text is
# better off not being inflated according to the same algorithm we use
# for larger chunks of text, we want a threshold for an amount of text
# that triggers font size inflation.  This preference controls that
# threshold.
#
# It controls the threshold used within an *approximation* of the
# number of lines of text we use.  In particular, if we assume that
# each character (collapsing collapsible whitespace) has a width the
# same as the em-size of the font (when, normally, it's actually quite
# a bit smaller on average), this preference gives the percentage of a
# number of lines of text we'd need to trigger inflation.  This means
# that a percentage of 100 means that we'd need a number of characters
# (we know the font size and the width) equivalent to one line of
# square text (which is actually a lot less than a real line of text).
#
# A value of 0 means there's no character length threshold.
- name: font.size.inflation.lineThreshold
  type: uint32_t
  value: 400
  mirror: always

# This controls the percentage that fonts will be inflated, if font
# size inflation is enabled. Essentially, if we have a specified font
# size, s, and an inflated font size, i, this specifies that the ratio
# i/s * 100 should never exceed the value of this preference. In order
# for this preference to have any effect, its value must be greater
# than 100, since font inflation can never decrease the ratio i/s.
- name: font.size.inflation.maxRatio
  type: uint32_t
  value: 0
  mirror: always

# This setting corresponds to a global text zoom setting affecting
# all content that is not already subject to font size inflation.
# It is interpreted as a percentage value that is applied on top
# of the document's current text zoom setting.
#
# The resulting total zoom factor (text zoom * system font scale)
# will be limited by zoom.minPercent and maxPercent.
- name: font.size.systemFontScale
  type: uint32_t
  value: 100
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "full-screen-api."
#---------------------------------------------------------------------------

- name: full-screen-api.enabled
  type: bool
  value: false
  mirror: always

- name: full-screen-api.allow-trusted-requests-only
  type: bool
  value: true
  mirror: always

- name: full-screen-api.mouse-event-allow-left-button-only
  type: bool
  value: true
  mirror: always

- name: full-screen-api.exit-on.windowOpen
  type: bool
  value: true
  mirror: always

- name: full-screen-api.exit-on.windowRaise
  type: bool
  value: true
  mirror: always

- name: full-screen-api.pointer-lock.enabled
  type: bool
  value: true
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "fuzzing.". It's important that these can only be
# checked in fuzzing builds (when FUZZING is defined), otherwise you could
# enable the fuzzing stuff on your regular build which would be bad :)
#---------------------------------------------------------------------------

#ifdef FUZZING
-   name: fuzzing.enabled
    type: bool
    value: false
    mirror: always

-   name: fuzzing.necko.enabled
    type: RelaxedAtomicBool
    value: false
    mirror: always
#endif

#---------------------------------------------------------------------------
# Prefs starting with "general."
#---------------------------------------------------------------------------

- name: general.aboutConfig.enable
  type: bool
  value: true
  mirror: always

# Limits the depth of recursive conversion of data when opening
# a content to view.  This is mostly intended to prevent infinite
# loops with faulty converters involved.
- name: general.document_open_conversion_depth_limit
  type: uint32_t
  value: 20
  mirror: always

- name: general.smoothScroll
  type: RelaxedAtomicBool
  value: true
  mirror: always

# This pref and general.smoothScroll.stopDecelerationWeighting determine
# the timing function.
- name: general.smoothScroll.currentVelocityWeighting
  type: AtomicFloat
  value: 0.25
  mirror: always

# To connect consecutive scroll events into a continuous flow, the animation's
# duration should be longer than scroll events intervals (or else the scroll
# will stop before the next event arrives - we're guessing the next interval
# by averaging recent intervals).
# This defines how much longer the duration is compared to the events
# interval (percentage).
- name: general.smoothScroll.durationToIntervalRatio
  type: RelaxedAtomicInt32
  value: 200
  mirror: always

- name: general.smoothScroll.lines
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: general.smoothScroll.lines.durationMaxMS
  type: RelaxedAtomicInt32
  value: 150
  mirror: always

- name: general.smoothScroll.lines.durationMinMS
  type: RelaxedAtomicInt32
  value: 150
  mirror: always

- name: general.smoothScroll.mouseWheel
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: general.smoothScroll.mouseWheel.durationMaxMS
  type: RelaxedAtomicInt32
  value: 200
  mirror: always

- name: general.smoothScroll.mouseWheel.durationMinMS
  type: RelaxedAtomicInt32
  value: 50
  mirror: always

- name: general.smoothScroll.other
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: general.smoothScroll.other.durationMaxMS
  type: RelaxedAtomicInt32
  value: 150
  mirror: always

- name: general.smoothScroll.other.durationMinMS
  type: RelaxedAtomicInt32
  value: 150
  mirror: always

- name: general.smoothScroll.pages
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: general.smoothScroll.pages.durationMaxMS
  type: RelaxedAtomicInt32
  value: 150
  mirror: always

- name: general.smoothScroll.pages.durationMinMS
  type: RelaxedAtomicInt32
  value: 150
  mirror: always

- name: general.smoothScroll.scrollbars
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: general.smoothScroll.scrollbars.durationMaxMS
  type: RelaxedAtomicInt32
  value: 150
  mirror: always

- name: general.smoothScroll.scrollbars.durationMinMS
  type: RelaxedAtomicInt32
  value: 150
  mirror: always

- name: general.smoothScroll.pixels
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: general.smoothScroll.pixels.durationMaxMS
  type: RelaxedAtomicInt32
  value: 150
  mirror: always

- name: general.smoothScroll.pixels.durationMinMS
  type: RelaxedAtomicInt32
  value: 150
  mirror: always

# This pref and general.smoothScroll.currentVelocityWeighting determine
# the timing function.
- name: general.smoothScroll.stopDecelerationWeighting
  type: AtomicFloat
  value: 0.4f
  mirror: always

# Alternative smooth scroll physics. ("MSD" = Mass-Spring-Damper)
- name: general.smoothScroll.msdPhysics.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: general.smoothScroll.msdPhysics.continuousMotionMaxDeltaMS
  type: RelaxedAtomicInt32
  value: 120
  mirror: always

- name: general.smoothScroll.msdPhysics.motionBeginSpringConstant
  type: RelaxedAtomicInt32
  value: 1250
  mirror: always

- name: general.smoothScroll.msdPhysics.slowdownMinDeltaMS
  type: RelaxedAtomicInt32
  value: 12
  mirror: always

- name: general.smoothScroll.msdPhysics.slowdownMinDeltaRatio
  type: AtomicFloat
  value: 1.3f
  mirror: always

- name: general.smoothScroll.msdPhysics.slowdownSpringConstant
  type: RelaxedAtomicInt32
  value: 2000
  mirror: always

- name: general.smoothScroll.msdPhysics.regularSpringConstant
  type: RelaxedAtomicInt32
  value: 1000
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "geo."
#---------------------------------------------------------------------------

# Is support for Navigator.geolocation enabled?
- name: geo.enabled
  type: bool
  value: true
  mirror: always

# Time, in milliseconds, to wait for the location provider to spin up.
- name: geo.timeout
  type: int32_t
  value: 6000
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "gfx."
#---------------------------------------------------------------------------

- name: gfx.allow-texture-direct-mapping
  type: bool
  value: true
  mirror: once

# Allow 24-bit colour when the hardware supports it.
- name: gfx.android.rgb16.force
  type: bool
  value: false
  mirror: once

- name: gfx.apitrace.enabled
  type: bool
  value: false
  mirror: once

# Nb: we ignore this pref on release and beta.
- name: gfx.blocklist.all
  type: int32_t
  value: 0
  mirror: once

# 0x7fff is the maximum supported xlib surface size and is more than enough for canvases.
- name: gfx.canvas.max-size
  type: RelaxedAtomicInt32
  value: 0x7fff
  mirror: always

- name: gfx.canvas.remote
  type: RelaxedAtomicBool
#if defined(XP_WIN)
  value: true
#else
  value: false
#endif
  mirror: always

- name: gfx.color_management.force_srgb
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: gfx.color_management.native_srgb
  type: RelaxedAtomicBool
#if defined(XP_MACOSX)
  value: true
#else
  value: false
#endif
  mirror: always

- name: gfx.color_management.enablev4
  type: RelaxedAtomicBool
#if defined(XP_MACOSX) && defined(NIGHTLY_BUILD)
  value: true
#else
  value: false
#endif
  mirror: always

# 0 = Off, 1 = Full, 2 = Tagged Images Only.
# See CMSMode in gfx/thebes/gfxPlatform.h.
- name: gfx.color_management.mode
  type: RelaxedAtomicInt32
  value: 2
  mirror: always

# The zero default here should match QCMS_INTENT_DEFAULT from qcms.h
- name: gfx.color_management.rendering_intent
  type: RelaxedAtomicInt32
  value: 0
  mirror: always

- name: gfx.compositor.clearstate
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Whether GL contexts can be migrated to a different GPU (to match the one the
# OS is using for composition).
#
# 0 = force disable migration
# 1 = use migration where in safe configurations (the default)
# 2 = force enable migration (for testing)
- name: gfx.compositor.gpu-migration
  type: RelaxedAtomicInt32
  value: 1
  mirror: always

- name: gfx.core-animation.tint-opaque
  type: RelaxedAtomicBool
  value: false
  mirror: always

#if defined(MOZ_WIDGET_ANDROID)
  # Overrides the glClear color used when the surface origin is not (0, 0)
  # Used for drawing a border around the content.
-   name: gfx.compositor.override.clear-color.r
    type: AtomicFloat
    value: 0.0f
    mirror: always

-   name: gfx.compositor.override.clear-color.g
    type: AtomicFloat
    value: 0.0f
    mirror: always

-   name: gfx.compositor.override.clear-color.b
    type: AtomicFloat
    value: 0.0f
    mirror: always

-   name: gfx.compositor.override.clear-color.a
    type: AtomicFloat
    value: 0.0f
    mirror: always
#endif  # defined(MOZ_WIDGET_ANDROID)

- name: gfx.content.always-paint
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Size in megabytes
- name: gfx.content.skia-font-cache-size
  type: int32_t
  value: 5
  mirror: once

- name: gfx.device-reset.limit
  type: int32_t
  value: 10
  mirror: once

- name: gfx.device-reset.threshold-ms
  type: int32_t
  value: -1
  mirror: once


# Whether to disable the automatic detection and use of direct2d.
- name: gfx.direct2d.disabled
  type: bool
  value: false
  mirror: once

# Whether to attempt to enable Direct2D regardless of automatic detection or
# blacklisting.
- name: gfx.direct2d.force-enabled
  type: bool
  value: false
  mirror: once

# Whether to defer destruction of Direct2D DrawTargets to the paint thread
# when using OMTP.
- name: gfx.direct2d.destroy-dt-on-paintthread
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: gfx.direct3d11.reuse-decoder-device
  type: RelaxedAtomicInt32
  value: -1
  mirror: always

- name: gfx.direct3d11.allow-keyed-mutex
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: gfx.direct3d11.use-double-buffering
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: gfx.direct3d11.enable-debug-layer
  type: bool
  value: false
  mirror: once

- name: gfx.direct3d11.break-on-error
  type: bool
  value: false
  mirror: once

- name: gfx.direct3d11.sleep-on-create-device
  type: int32_t
  value: 0
  mirror: once

# Whether to preserve color bitmap tables in fonts (bypassing OTS).
# Currently these are supported only on platforms where we use Freetype
# to render fonts (Linux/Gtk and Android).
- name: gfx.downloadable_fonts.keep_color_bitmaps
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Whether font sanitization is performed on the main thread or not.
- name: gfx.downloadable_fonts.sanitize_omt
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether to validate OpenType variation tables in fonts.
- name: gfx.downloadable_fonts.validate_variation_tables
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether OTS validation should be applied to OpenType Layout (OTL) tables.
- name: gfx.downloadable_fonts.otl_validation
  type: RelaxedAtomicBool
  value: @IS_NOT_RELEASE_OR_BETA@
  mirror: always

- name: gfx.draw-color-bars
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: gfx.e10s.hide-plugins-for-scroll
  type: bool
  value: true
  mirror: once

- name: gfx.e10s.font-list.shared
  type: bool
  value: false
  mirror: once

# [Windows] Whether registry FontSubstitutes entries are used unconditionally,
# or only if the original font is not available.
#if defined(XP_WIN)
- name: gfx.windows-font-substitutes.always
  type: bool
  value: false
  mirror: once
#endif

- name: gfx.font-list-omt.enabled
  type: bool
  value: false
  mirror: once

# Whether to load fonts (e.g. Twemoji Mozilla) bundled with the application:
#  -1 - Auto behavior based on OS version (currently, disables loading on
#       "low-memory" Android devices)
#   0 - Skip loading any bundled fonts
#   1 - Always load bundled fonts
- name: gfx.bundled-fonts.activate
  type: int32_t
  value: -1
  mirror: once

- name: gfx.font_loader.delay
  type: uint32_t
#if defined(XP_WIN)
  value: 60000
#else
  value: 8000
#endif
  mirror: once

# Disable antialiasing of Ahem, for use in tests.
- name: gfx.font_rendering.ahem_antialias_none
  type: RelaxedAtomicBool
  value: false
  mirror: always

#if defined(XP_MACOSX)
  # Set to true to revert from HarfBuzz AAT shaping to the old Core Text
  # backend.
-   name: gfx.font_rendering.coretext.enabled
    type: RelaxedAtomicBool
    value: false
    mirror: always
#endif

- name: gfx.font_rendering.opentype_svg.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always
  rust: true

- name: gfx.font_rendering.fallback.async
  type: RelaxedAtomicBool
  value: true
  mirror: always

#  Whether to enable LayerScope tool and default listening port.
- name: gfx.layerscope.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: gfx.layerscope.port
  type: RelaxedAtomicInt32
  value: 23456
  mirror: always

# The level of logging:
# - 0: no logging;
# - 1: adds errors;
# - 2: adds warnings;
# - 3 or 4: adds debug logging.
# If you set the value to 4, you will also need to set the environment
# variable MOZ_LOG to gfx:4. See mozilla/Logging.h for details.
- name: gfx.logging.level
  type: RelaxedAtomicInt32
  value: mozilla::gfx::LOG_DEFAULT
  mirror: always
  include: mozilla/gfx/LoggingConstants.h

- name: gfx.logging.crash.length
  type: uint32_t
  value: 16
  mirror: once

- name: gfx.logging.painted-pixel-count.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# The maximums here are quite conservative, we can tighten them if problems show up.
- name: gfx.logging.texture-usage.enabled
  type: bool
  value: false
  mirror: once

- name: gfx.logging.peak-texture-usage.enabled
  type: bool
  value: false
  mirror: once

- name: gfx.logging.slow-frames.enabled
  type: bool
  value: false
  mirror: once

# Use gfxPlatform::MaxAllocSize instead of the pref directly.
- name: gfx.max-alloc-size
  type: int32_t
  value: (int32_t)500000000
  mirror: once
  do_not_use_directly: true

# Use gfxPlatform::MaxTextureSize instead of the pref directly.
- name: gfx.max-texture-size
  type: int32_t
  value: (int32_t)32767
  mirror: once
  do_not_use_directly: true

- name: gfx.offscreencanvas.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: gfx.omta.background-color
  type: bool
  value: true
  mirror: always

- name: gfx.partialpresent.force
  type: RelaxedAtomicInt32
  value: 0
  mirror: always

# Log severe performance warnings to the error console and profiles.
# This should be use to quickly find which slow paths are used by test cases.
- name: gfx.perf-warnings.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

#ifdef MOZ_X11
# Whether to force using GLX over EGL.
- name: gfx.x11-egl.force-disabled
  type: bool
  value: false
  mirror: once

# Whether to force using EGL over GLX.
- name: gfx.x11-egl.force-enabled
  type: bool
  value: false
  mirror: once
#endif

- name: gfx.testing.device-fail
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: gfx.testing.device-reset
  type: RelaxedAtomicInt32
  value: 0
  mirror: always

- name: gfx.text.disable-aa
  type: bool
  value: false
  mirror: once

- name: gfx.text.subpixel-position.force-enabled
  type: bool
  value: false
  mirror: once

- name: gfx.text.subpixel-position.force-disabled
  type: bool
  value: false
  mirror: once

# Disable surface sharing due to issues with compatible FBConfigs on
# NVIDIA drivers as described in bug 1193015.
- name: gfx.use-glx-texture-from-pixmap
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: gfx.use-iosurface-textures
  type: bool
  value: false
  mirror: once

- name: gfx.use-mutex-on-present
  type: bool
  value: false
  mirror: once

- name: gfx.use-ahardwarebuffer-content
  type: bool
  value: false
  mirror: once

# Use SurfaceTextures as preferred backend for TextureClient/Host.
- name: gfx.use-surfacetexture-textures
  type: bool
  value: false
  mirror: once

- name: gfx.vsync.collect-scroll-transforms
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: gfx.vsync.compositor.unobserve-count
  type: int32_t
  value: 10
  mirror: once

- name: gfx.vsync.force-disable-waitforvblank
  type: RelaxedAtomicBool
  value: false
  mirror: always

# We expose two prefs: gfx.webrender.all and gfx.webrender.enabled.
# The first enables WR+additional features, and the second just enables WR.
# For developer convenience, building with --enable-webrender=true or just
# --enable-webrender will set gfx.webrender.enabled to true by default.
#
# We also have a pref gfx.webrender.all.qualified which is not exposed via
# about:config. That pref enables WR but only on qualified hardware. This is
# the pref we'll eventually flip to deploy WebRender to the target population.
- name: gfx.webrender.all
  type: bool
  value: false
  mirror: once

- name: gfx.webrender.enabled
  type: bool
  value: false
  mirror: once
  do_not_use_directly: true

#ifdef XP_WIN
- name: gfx.webrender.force-angle
  type: bool
  value: true
  mirror: once
#endif

# WebRender is not enabled when there is no GPU process on window when
# WebRender uses ANGLE. It is for avoiding that WebGL and WebRender use ANGLE
# at once. But there is a case that we want to enable WebRender for testing.
#ifdef XP_WIN
- name: gfx.webrender.enabled-no-gpu-process-with-angle-win
  type: bool
  value: true
  mirror: once
#endif

- name: gfx.webrender.blob-images
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: gfx.webrender.svg-images
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: gfx.webrender.blob.paint-flashing
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: gfx.webrender.enable-capture
  type: bool
  value: false
  mirror: once

- name: gfx.webrender.dl.dump-parent
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: gfx.webrender.dl.dump-content
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: gfx.webrender.dl.dump-content-serialized
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Also expose a pref to allow users to force-disable WR. This is exposed
# on all channels because WR can be enabled on qualified hardware on all
# channels.
- name: gfx.webrender.force-disabled
  type: bool
  value: false
  mirror: once

#ifdef MOZ_WIDGET_GTK
- name: gfx.webrender.reject-software-driver
  type: bool
  value: true
  mirror: once
#endif

- name: gfx.webrender.highlight-painted-layers
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: gfx.webrender.late-scenebuild-threshold
  type: RelaxedAtomicInt32
  value: 4
  mirror: always

- name: gfx.webrender.max-filter-ops-per-chain
  type: RelaxedAtomicUint32
  value: 64
  mirror: always

- name: gfx.webrender.enable-multithreading
  type: bool
  value: true
  mirror: always

- name: gfx.webrender.batching.lookback
  type: uint32_t
  value: 10
  mirror: always

- name: gfx.webrender.compositor
  type: bool
#if defined(XP_WIN) || defined(XP_MACOSX)
  value: true
#else
  value: false
#endif
  mirror: once

- name: gfx.webrender.compositor.force-enabled
  type: bool
  value: false
  mirror: once

- name: gfx.webrender.compositor.max_update_rects
  type: uint32_t
#if defined(XP_WIN) || defined(XP_MACOSX)
  value: 1
#else
  value: 0
#endif
  mirror: once

- name: gfx.webrender.compositor.surface-pool-size
  type: uint32_t
  value: 25
  mirror: once

# Number of damage rects we can give to the compositor for a new frame with
# partial present. This controls whether partial present is used or not.
- name: gfx.webrender.max-partial-present-rects
  type: uint32_t
#if defined(XP_WIN) || defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GTK)
  value: 1
#else
  value: 0
#endif
  mirror: once

# Whether or not we can reuse the buffer contents using the GL buffer age
# extension, if supported by the platform. This requires partial present
# to be used.
- name: gfx.webrender.allow-partial-present-buffer-age
  type: bool
  value: true
  mirror: once

- name: gfx.webrender.enable-gpu-markers
  type: bool
#ifdef DEBUG
  value: true
#else
  value: false
#endif
  mirror: once

- name: gfx.webrender.enable-item-cache
  type: bool
  value: true
  mirror: once

# Whether or not to fallback from WebRender/WebRender Software to Basic.
- name: gfx.webrender.fallback.basic
  type: bool
#if defined(MOZ_WIDGET_ANDROID)
  value: true
#else
  value: @IS_NOT_EARLY_BETA_OR_EARLIER@
#endif
  mirror: once

# Whether or not to fallback from WebRender to Software WebRender.
- name: gfx.webrender.fallback.software
  type: bool
#if defined(MOZ_WIDGET_ANDROID)
  value: false
#else
  value: true
#endif
  mirror: once

#ifdef XP_WIN
  # Whether or not to fallback from WebRender to Software WebRender + D3D11.
-   name: gfx.webrender.fallback.software-d3d11
    type: bool
    value: true
    mirror: once
#endif

# Whether or not fallback to Software WebRender requires the GPU process.
- name: gfx.webrender.fallback.software.requires-gpu-process
  type: bool
  value: false
  mirror: once

- name: gfx.webrender.program-binary-disk
  type: bool
#if defined(XP_WIN) || defined(ANDROID)
  value: true
#else
  value: false
#endif
  mirror: once

- name: gfx.webrender.use-optimized-shaders
  type: bool
  value: true
  mirror: once

- name: gfx.webrender.precache-shaders
  type: bool
  value: false
  mirror: once

# When gl debug message is a high severity message, forwward it to gfx critical
# note.
- name: gfx.webrender.gl-debug-message-critical-note
  type: bool
#if defined(XP_WIN) && defined(NIGHTLY_BUILD)
  value: true
#else
  value: false
#endif
  mirror: once

# Enable printing gl debug messages
- name: gfx.webrender.gl-debug-message-print
  type: bool
  value: false
  mirror: once

#ifdef NIGHTLY_BUILD
  # Keep this pref hidden on non-nightly builds to avoid people accidentally
  # turning it on.
- name: gfx.webrender.panic-on-gl-error
  type: bool
  value: false
  mirror: once
#endif

#ifdef XP_WIN
  # Enables display of performance debugging counters when DirectComposition
  # is used.
  # Performance counters are displayed on the top-right corner of the screen.
-   name: gfx.webrender.debug.dcomp-counter
    type: RelaxedAtomicBool
    value: false
    mirror: always
  # Enables highlighting redraw regions of DCompositionVisual
-   name: gfx.webrender.debug.dcomp-redraw-regions
    type: RelaxedAtomicBool
    value: false
    mirror: always
#endif

- name: gfx.webrender.enable-low-priority-pool
  type: RelaxedAtomicBool
#if defined(ANDROID)
  value: false
#else
  value: true
#endif
  mirror: always

  # Force subpixel anti-aliasing as much as possible, despite performance cost.
- name: gfx.webrender.quality.force-subpixel-aa-where-possible
  type: bool
  value: false
  mirror: always

#ifdef XP_MACOSX
- name: gfx.webrender.enable-client-storage
  type: bool
  value: true
  mirror: once
#endif

 # Width of WebRender tile size
- name: gfx.webrender.picture-tile-width
  type: RelaxedAtomicInt32
  value: 1024
  mirror: always

 # Width of WebRender tile size
- name: gfx.webrender.picture-tile-height
  type: RelaxedAtomicInt32
  value: 512
  mirror: always

# Whether to use EGL robustness or not.
- name: gfx.webrender.prefer-robustness
  type: bool
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
  value: true
#else
  value: false
#endif
  mirror: once

# Whether to use the WebRender software backend
- name: gfx.webrender.software
  type: bool
  value: false
  mirror: once

# Whether to use the D3D11 RenderCompositor when using WebRender software backend
- name: gfx.webrender.software.d3d11
  type: bool
  value: true
  mirror: once

- name: gfx.webrender.software.opengl
  type: bool
#if defined(MOZ_WIDGET_ANDROID)
  value: true
#else
  value: false
#endif
  mirror: once

- name: gfx.webrender.software.d3d11.upload-mode
  type: RelaxedAtomicInt32
  value: 4
  mirror: always

# Whether to allow widgets that don't support acceleration to use WebRender
# software backend
- name: gfx.webrender.software.unaccelerated-widget.allow
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether to force widgets to don't support acceleration to use WebRender
# despite that
- name: gfx.webrender.unaccelerated-widget.force
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Enable a lower quality, but higher performance pinch-zoom mode. Primarily
# for devices with weak GPUs, or when running SWGL.
- name: gfx.webrender.low-quality-pinch-zoom
  type: bool
#if defined(MOZ_WIDGET_ANDROID) && defined(NIGHTLY_BUILD)
  value: true
#else
  value: false
#endif
  mirror: once

# Use vsync events generated by hardware
- name: gfx.work-around-driver-bugs
  type: bool
  value: true
  mirror: once

- name: gfx.ycbcr.accurate-conversion
  type: RelaxedAtomicBool
  value: false
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "gl." (OpenGL)
#---------------------------------------------------------------------------

- name: gl.allow-high-power
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: gl.ignore-dx-interop2-blacklist
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: gl.use-tls-is-current
  type: RelaxedAtomicInt32
  value: 0
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "html5."
#---------------------------------------------------------------------------

# Turn HTML:inert on or off.
- name: html5.inert.enabled
  type: bool
  value: false
  mirror: always

# Toggle which thread the HTML5 parser uses for stream parsing.
- name: html5.offmainthread
  type: bool
  value: true
  mirror: always

# Time in milliseconds between the time a network buffer is seen and the timer
# firing when the timer hasn't fired previously in this parse in the
# off-the-main-thread HTML5 parser.
- name: html5.flushtimer.initialdelay
  type: RelaxedAtomicInt32
  value: 16
  mirror: always

# Time in milliseconds between the time a network buffer is seen and the timer
# firing when the timer has already fired previously in this parse.
- name: html5.flushtimer.subsequentdelay
  type: RelaxedAtomicInt32
  value: 16
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "idle_period."
#---------------------------------------------------------------------------

- name: idle_period.min
  type: uint32_t
  value: 3
  mirror: always

- name: idle_period.during_page_load.min
  type: uint32_t
  value: 12
  mirror: always

- name: idle_period.cross_process_scheduling
  type: RelaxedAtomicBool
  value: true
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "image."
#---------------------------------------------------------------------------

# The maximum size (in kB) that the aggregate frames of an animation can use
# before it starts to discard already displayed frames and redecode them as
# necessary.
- name: image.animated.decode-on-demand.threshold-kb
  type: RelaxedAtomicUint32
  value: 20*1024
  mirror: always

# The minimum number of frames we want to have buffered ahead of an
# animation's currently displayed frame.
- name: image.animated.decode-on-demand.batch-size
  type: RelaxedAtomicUint32
  value: 6
  mirror: always

# Whether we should recycle already displayed frames instead of discarding
# them. This saves on the allocation itself, and may be able to reuse the
# contents as well. Only applies if generating full frames.
- name: image.animated.decode-on-demand.recycle
  type: bool
  value: true
  mirror: once

# Resume an animated image from the last displayed frame rather than
# advancing when out of view.
- name: image.animated.resume-from-last-displayed
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Maximum number of surfaces for an image before entering "factor of 2" mode.
# This in addition to the number of "native" sizes of an image. A native size
# is a size for which we can decode a frame without up or downscaling. Most
# images only have 1, but some (i.e. ICOs) may have multiple frames for the
# same data at different sizes.
- name: image.cache.factor2.threshold-surfaces
  type: RelaxedAtomicInt32
  value: 4
  mirror: always

# Maximum size of a surface in KB we are willing to produce when rasterizing
# an SVG.
- name: image.cache.max-rasterized-svg-threshold-kb
  type: RelaxedAtomicInt32
  value: 200*1024
  mirror: always

# The maximum size, in bytes, of the decoded images we cache.
- name: image.cache.size
  type: int32_t
  value: 5*1024*1024
  mirror: once

# A weight, from 0-1000, to place on time when comparing to size.
# Size is given a weight of 1000 - timeweight.
- name: image.cache.timeweight
  type: int32_t
  value: 500
  mirror: once

# Decode all images automatically on load, ignoring our normal heuristics.
- name: image.decode-immediately.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Whether we attempt to downscale images during decoding.
- name: image.downscale-during-decode.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether we use EXIF metadata for image density.
- name: image.exif-density-correction.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether EXIF density metadata is sanity checked against PixelXDimension and PixelYDimension
- name: image.exif-density-correction.sanity-check.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# The threshold for inferring that changes to an <img> element's |src|
# attribute by JavaScript represent an animation, in milliseconds. If the |src|
# attribute is changing more frequently than this value, then we enter a
# special "animation mode" which is designed to eliminate flicker. Set to 0 to
# disable.
- name: image.infer-src-animation.threshold-ms
  type: RelaxedAtomicUint32
  value: 2000
  mirror: always

# Whether the network request priority should be adjusted according
# the layout and view frame position of each particular image.
- name: image.layout_network_priority
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Chunk size for calls to the image decoders.
- name: image.mem.decode_bytes_at_a_time
  type: uint32_t
  value: 16384
  mirror: once

# Discards inactive image frames and re-decodes them on demand from
# compressed data.
- name: image.mem.discardable
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Discards inactive image frames of _animated_ images and re-decodes them on
# demand from compressed data. Has no effect if image.mem.discardable is false.
- name: image.mem.animated.discardable
  type: bool
  value: true
  mirror: once

# Whether the heap should be used for frames from animated images. On Android,
# volatile memory keeps file handles open for each buffer.
- name: image.mem.animated.use_heap
  type: RelaxedAtomicBool
  value: @IS_ANDROID@
  mirror: always

# Enable extra information for debugging in the image memory reports.
- name: image.mem.debug-reporting
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Decodes images into shared memory to allow direct use in separate
# rendering processes. Only applicable with WebRender.
- name: image.mem.shared
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Force unmapping of unused shared surfaces after a timeout period or when we
# encounter virtual memory pressure. By default this is only enabled on 32-bit
# Firefox.
- name: image.mem.shared.unmap.force-enabled
  type: bool
  value: false
  mirror: once

# Minimum timeout to unmap shared surfaces since they have been last used,
# in milliseconds.
- name: image.mem.shared.unmap.min_expiration_ms
  type: uint32_t
  value: 60*1000
  mirror: once

# Mininum size for shared surfaces to consider unmapping, in kilobytes.
- name: image.mem.shared.unmap.min_threshold_kb
  type: uint32_t
  value: 100
  mirror: once

# How much of the data in the surface cache is discarded when we get a memory
# pressure notification, as a fraction. The discard factor is interpreted as a
# reciprocal, so a discard factor of 1 means to discard everything in the
# surface cache on memory pressure, a discard factor of 2 means to discard half
# of the data, and so forth. The default should be a good balance for desktop
# and laptop systems, where we never discard visible images.
- name: image.mem.surfacecache.discard_factor
  type: uint32_t
  value: 1
  mirror: once

# Maximum size for the surface cache, in kilobytes.
- name: image.mem.surfacecache.max_size_kb
  type: uint32_t
  value: 2024 * 1024
  mirror: once

# Minimum timeout for expiring unused images from the surface cache, in
# milliseconds. This controls how long we store cached temporary surfaces.
- name: image.mem.surfacecache.min_expiration_ms
  type: uint32_t
  value: 60*1000
  mirror: once

# The surface cache's size, within the constraints of the maximum size set
# above, is determined as a fraction of main memory size. The size factor is
# interpreted as a reciprocal, so a size factor of 4 means to use no more than
# 1/4 of main memory.  The default should be a good balance for most systems.
- name: image.mem.surfacecache.size_factor
  type: uint32_t
  value: 4
  mirror: once

# Minimum buffer size in KB before using volatile memory over the heap.
- name: image.mem.volatile.min_threshold_kb
  type: RelaxedAtomicInt32
#if defined(ANDROID)
  # On Android, volatile memory keeps file handles open for each buffer.
  value: 100
#else
  value: -1
#endif
  mirror: always

# How long in ms before we should start shutting down idle decoder threads.
- name: image.multithreaded_decoding.idle_timeout
  type: int32_t
  value: 600000
  mirror: once

# How many threads we'll use for multithreaded decoding. If < 0, will be
# automatically determined based on the system's number of cores.
- name: image.multithreaded_decoding.limit
  type: int32_t
  value: -1
  mirror: once

# Whether we record SVG images as blobs or not.
- name: image.svg.blob-image
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Whether we attempt to decode WebP images or not.
- name: image.webp.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether we attempt to decode AVIF images or not.
- name: image.avif.enabled
  type: RelaxedAtomicBool
#if defined(MOZ_AV1)
  value: false
#else
  value: false
#endif
  mirror: always

# How strict we are in accepting/rejecting AVIF inputs according to whether they
# conform to the specification
# 0 = Permissive: accept whatever we can simply, unambiguously interpret
# 1 = Normal: reject violations of "shall" specification directives
# 2 = Strict: reject violations of "should" specification directives
- name: image.avif.compliance_strictness
  type: RelaxedAtomicInt32
  value: 1
  mirror: always

# Whether we apply container-level transforms like mirroring and rotation
- name: image.avif.apply_transforms
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether we use dav1d (true) or libaom (false) to decode AVIF image
- name: image.avif.use-dav1d
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether we attempt to decode JXL images or not.
- name: image.jxl.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "intl."
#---------------------------------------------------------------------------

# If true, dispatch the keydown and keyup events on any web apps even during
# composition.
- name: intl.ime.hack.on_any_apps.fire_key_events_for_composition
  type: bool
  value: @IS_ANDROID@
  mirror: always

# Android-specific pref to control if keydown and keyup events are fired even
# during composition.  Note that those prefs are ignored if
# dom.keyboardevent.dispatch_during_composition is false.
- name: intl.ime.hack.on_ime_unaware_apps.fire_key_events_for_composition
  type: bool
# If true and intl.ime.hack.on_any_apps.fire_key_events_for_composition is
# false, dispatch the keydown and keyup events only on IME-unaware web apps.
# So, this supports web apps which listen to only keydown or keyup events
# to get a change to do something at every text input.
  value: @IS_ANDROID@
  mirror: always

#ifdef XP_WIN
  # If true, automatically extend selection to cluster boundaries when
  # TSF/TIP requests to select from/by middle of a cluster.
-   name: intl.tsf.hack.extend_setting_selection_range_to_cluster_boundaries
    type: bool
    value: @IS_NOT_EARLY_BETA_OR_EARLIER@
    mirror: always
#endif

# If you use legacy Chinese IME which puts an ideographic space to composition
# string as placeholder, this pref might be useful.  If this is true and when
# web contents forcibly commits composition (e.g., moving focus), the
# ideographic space will be ignored (i.e., commits with empty string).
- name: intl.ime.remove_placeholder_character_at_commit
  type: bool
  value: false
  mirror: always

#if defined(XP_MACOSX) || defined(MOZ_WIDGET_GTK)
# Whether text input without keyboard press nor IME composition should cause a
# set of composition events or not.  E.g., when you use Emoji picker on macOS,
# it inserts an Emoji character directly.  If set to true, `compositionstart`,
# `compositionupdate` and `compositionend` events will be fired, and the
# correspnding `beforeinput` events are not cancelable.  Otherwise, if set to
# false, any user input events are not exposed to web apps but only
# `beforeinput` event is fired as "insert text" as a cancelable event.
- name: intl.ime.use_composition_events_for_insert_text
  type: bool
  value: false
  mirror: always
#endif

#---------------------------------------------------------------------------
# Prefs starting with "javascript."
#
# NOTE: SpiderMonkey starts up before `mirror: once` preferences are sealed and
#       we cannot use them (Bug 1698311). Instead, we use `mirror: always`
#       prefs but mark as `do_not_use_directly` and `LoadStartupJSPrefs` will
#       mirror them into SpiderMonkey.
#---------------------------------------------------------------------------

# The JavaScript JIT compilers. These are read once on startup so a browser may
# need to be restarted if toggling them. In general each subsequent JIT depends
# on the ones before it being enabled.
- name: javascript.options.blinterp
  type: bool
  value: true
  mirror: always  # LoadStartupJSPrefs
  do_not_use_directly: true

- name: javascript.options.baselinejit
  type: bool
  value: true
  mirror: always  # LoadStartupJSPrefs
  do_not_use_directly: true

- name: javascript.options.ion
  type: bool
  value: true
  mirror: always  # LoadStartupJSPrefs
  do_not_use_directly: true

# The irregexp JIT for regex evaluation.
- name: javascript.options.native_regexp
  type: bool
  value: true
  mirror: always  # LoadStartupJSPrefs
  do_not_use_directly: true

# "Warm-up" thresholds at which we attempt to compile a script/function with
# the next JIT tier.
#
# NOTE: These must match JitOptions defaults.
- name: javascript.options.blinterp.threshold
  type: int32_t
  value: 10
  mirror: always  # LoadStartupJSPrefs
  do_not_use_directly: true

- name: javascript.options.baselinejit.threshold
  type: int32_t
  value: 100
  mirror: always  # LoadStartupJSPrefs
  do_not_use_directly: true

- name: javascript.options.ion.threshold
  type: int32_t
  value: 1500
  mirror: always  # LoadStartupJSPrefs
  do_not_use_directly: true

# Enable off-main-thread Warp compilation.
- name: javascript.options.ion.offthread_compilation
  type: bool
  value: true
  mirror: always  # LoadStartupJSPrefs
  do_not_use_directly: true

#ifdef DEBUG
  # Enable extra correctness checks in the JITs that are slow and only available
  # in debug builds.
-   name: javascript.options.jit.full_debug_checks
    type: bool
    value: false
    mirror: always  # LoadStartupJSPrefs
    do_not_use_directly: true
#endif

# Heuristic threshold for Warp/Ion to decide that too many bailouts are
# happening and an IonScript should be discarded.
#
# NOTE: This must match JitOptions defaults.
- name: javascript.options.ion.frequent_bailout_threshold
  type: int32_t
  value: 10
  mirror: always  # LoadStartupJSPrefs
  do_not_use_directly: true

# A threshold for Warp to decide whether a function can be inlined.
# If the size of a function is smaller than this threshold, then it
# may be inlined.
#
# NOTE: These must match JitOptions defaults.
- name: javascript.options.inlining_bytecode_max_length
  type: uint32_t
  value: 130
  mirror: always
  do_not_use_directly: true

- name: javascript.options.compact_on_user_inactive
  type: bool
  value: true
  mirror: always

# The default amount of time to wait from the user being idle to starting a
# shrinking GC. Measured in milliseconds.
- name: javascript.options.compact_on_user_inactive_delay
  type: uint32_t
#ifdef NIGHTLY_BUILD
  value: 15000
#else
  value: 300000
#endif
  mirror: always

# Use better error message when accessing property of null or undefined.
- name: javascript.options.property_error_message_fix
  type: bool
  value: @IS_NIGHTLY_OR_DEV_EDITION@
  mirror: always

# Support for weak references in JavaScript (WeakRef and FinalizationRegistry).
- name: javascript.options.weakrefs
  type: bool
  value: true
  mirror: always

# Whether to expose the FinalizationRegistry.prototype.cleanupSome method.
- name: javascript.options.experimental.weakrefs.expose_cleanupSome
  type: bool
  value: false
  mirror: always

#ifdef NIGHTLY_BUILD
  # Experimental support for Iterator Helpers in JavaScript.
-   name: javascript.options.experimental.iterator_helpers
    type: bool
    value: false
    mirror: always

# Experimental support for class static blocks in JavaScript.
-   name: javascript.options.experimental.class_static_blocks
    type: bool
    value: false
    mirror: always
#endif  // NIGHTLY_BUILD

  # Support for Private Fields in JavaScript.
- name: javascript.options.experimental.private_fields
  type: bool
  value: true
  mirror: always

  # Experimental support for Private Methods in JavaScript.
- name: javascript.options.experimental.private_methods
  type: bool
  value: true
  mirror: always

  # Experimental support for the ergonomic brand check proposal.
- name: javascript.options.experimental.ergonomic_brand_checks
  type: bool
  value: true
  mirror: always

  # Experimental support for Top-level Await in JavaScript.
-   name: javascript.options.experimental.top_level_await
    type: bool
    value: true
    mirror: always

# The amount of time we wait between a request to GC (due to leaving a page) and doing the actual GC, in ms.
- name: javascript.options.gc_delay
  type: uint32_t
  value: 4000
  mirror: always

# The amount of time we wait from the first request to GC to actually doing the first GC, in ms.
- name: javascript.options.gc_delay.first
  type: uint32_t
  value: 10000
  mirror: always

# After doing a zonal GC, wait this much time (in ms) and then do a full GC,
# unless one is already pending.
- name: javascript.options.gc_delay.full
  type: uint32_t
  value: 60000
  mirror: always

# Maximum amount of time that should elapse between incremental GC slices, in ms.
- name: javascript.options.gc_delay.interslice
  type: uint32_t
  value: 100
  mirror: always

# nsJSEnvironmentObserver observes the memory-pressure notifications and
# forces a garbage collection and cycle collection when it happens, if the
# appropriate pref is set.
- name: javascript.options.gc_on_memory_pressure
  type: bool
  # Disable the JS engine's GC on memory pressure, since we do one in the
  # mobile browser (bug 669346).
  # XXX: this value possibly should be changed, or the pref removed entirely.
  #      See bug 1450787.
  value: @IS_NOT_ANDROID@
  mirror: always

# We allow at most MIN(max, MAX(NUM_CPUS / cpu_divisor, 1)) concurrent GCs
# between processes
- name: javascript.options.concurrent_multiprocess_gcs.cpu_divisor
  type: RelaxedAtomicUint32
  value: 4
  mirror: always

# See 'cpu_divisor' above, 0 means UINT_32_MAX.
- name: javascript.options.concurrent_multiprocess_gcs.max
  type: RelaxedAtomicUint32
  value: 0
  mirror: always

- name: javascript.options.mem.log
  type: bool
  value: false
  mirror: always

- name: javascript.options.mem.notify
  type: bool
  value: false
  mirror: always

# Whether the Parent process allocates and shares memory with all content
# processes. This is mirrored once, as the parent process will do this
# allocation early on.
- name: javascript.options.self_hosted.use_shared_memory
  type: bool
  value: true
  mirror: always  # LoadStartupJSPrefs
  do_not_use_directly: true

# Streams API.
- name: javascript.options.streams
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Writable Streams API.  (The pref above must also be set to expose this.)
#
# Writable streams are still EXTRAORDINARILY BETA and it is well-known that
# things are likely pretty broken if you poke much at all, so if you flip this
# preference, don't report bugs against it just yet.
- name: javascript.options.writable_streams
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: javascript.options.main_thread_stack_quota_cap
  type: uint32_t
#if defined(MOZ_ASAN)
  value: 6 * 1024 * 1024
#else
  value: 2 * 1024 * 1024
#endif
  mirror: always

- name: javascript.options.wasm_optimizingjit
  type: bool
  value: true
  mirror: always

#if defined(ENABLE_WASM_SIMD)
-   name: javascript.options.wasm_simd
    type: bool
    value: true
    mirror: always
#endif  // defined(ENABLE_WASM_SIMD)

#if defined(ENABLE_WASM_RELAXED_SIMD)
-   name: javascript.options.wasm_relaxed_simd
    type: bool
    value: false
    mirror: always
#endif  // defined(ENABLE_WASM_RELAXED_SIMD)

#if defined(ENABLE_WASM_EXTENDED_CONST)
-   name: javascript.options.wasm_extended_const
    type: bool
    value: @IS_NIGHTLY_BUILD@
    mirror: always
#endif  // defined(ENABLE_WASM_EXTENDED_CONST)

#if defined(ENABLE_WASM_EXCEPTIONS)
-   name: javascript.options.wasm_exceptions
    type: bool
    value: false
    mirror: always
#endif // defined(ENABLE_WASM_EXCEPTIONS)

#if defined(ENABLE_WASM_FUNCTION_REFERENCES)
-   name: javascript.options.wasm_function_references
    type: bool
    value: false
    mirror: always
#endif // defined(ENABLE_WASM_FUNCTION_REFERENCES)

#if defined(ENABLE_WASM_GC)
-   name: javascript.options.wasm_gc
    type: bool
    value: false
    mirror: always
#endif // defined(ENABLE_WASM_GC)

#if defined(ENABLE_WASM_SIMD_WORMHOLE) && defined(EARLY_BETA_OR_EARLIER)
  # This is x64-only and it would break unified macOS builds if
  # it were in all.js.  The feature rides the trains but not the
  # pref to control it; in late beta and release, it is only
  # available to privileged content.
-   name: javascript.options.wasm_simd_wormhole
    type: bool
    value: false
    mirror: always
#endif

# Support for ArrayBuffers larger than 2 GB on 64-bit systems
- name: javascript.options.large_arraybuffers
  type: bool
  value: true
  mirror: always  # LoadStartupJSPrefs
  do_not_use_directly: true

# Support for pretenuring allocations based on their allocation site.
- name: javascript.options.site_based_pretenuring
  type: bool
  value: true
  mirror: always  # LoadStartupJSPrefs
  do_not_use_directly: true

#if !defined(JS_CODEGEN_MIPS32) && !defined(JS_CODEGEN_MIPS64)
  # Spectre security vulnerability mitigations for the JS JITs.
  #
  # NOTE: The MIPS backends do not support these mitigations (and generally
  #       do not need them). In that case, leave the pref unlisted with its
  #       default value of false.
-   name: javascript.options.spectre.index_masking
    type: bool
    value: true
    mirror: always  # LoadStartupJSPrefs
    do_not_use_directly: true

-   name: javascript.options.spectre.object_mitigations
    type: bool
    value: true
    mirror: always  # LoadStartupJSPrefs
    do_not_use_directly: true

-   name: javascript.options.spectre.string_mitigations
    type: bool
    value: true
    mirror: always  # LoadStartupJSPrefs
    do_not_use_directly: true

-   name: javascript.options.spectre.value_masking
    type: bool
    value: true
    mirror: always  # LoadStartupJSPrefs
    do_not_use_directly: true

-   name: javascript.options.spectre.jit_to_cxx_calls
    type: bool
    value: true
    mirror: always  # LoadStartupJSPrefs
    do_not_use_directly: true
#endif  // !defined(JS_CODEGEN_MIPSXX)

# Whether to use the XPCOM thread pool for JS helper tasks.
- name: javascript.options.external_thread_pool
  type: bool
  value: true
  mirror: always
  do_not_use_directly: true

# Whether to use fdlibm for Math.sin, Math.cos, and Math.tan. When
# privacy.resistFingerprinting is true, this pref is ignored and fdlibm is used
# anyway.
- name: javascript.options.use_fdlibm_for_sin_cos_tan
  type: bool
  value: false
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "layers."
#---------------------------------------------------------------------------

# Whether to disable acceleration for all widgets.
- name: layers.acceleration.disabled
  type: bool
  value: false
  mirror: once
  do_not_use_directly: true
# Instead, use gfxConfig::IsEnabled(Feature::HW_COMPOSITING).

- name: layers.acceleration.draw-fps
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: layers.acceleration.draw-fps.print-histogram
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: layers.acceleration.draw-fps.write-to-file
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Whether to force acceleration on, ignoring blacklists.

# bug 838603 -- on Android, accidentally blacklisting OpenGL layers
# means a startup crash for everyone.
# Temporarily force-enable GL compositing.  This is default-disabled
# deep within the bowels of the widgetry system.  Remove me when GL
# compositing isn't default disabled in widget/android.
- name: layers.acceleration.force-enabled
  type: bool
  value: @IS_ANDROID@
  mirror: once
  do_not_use_directly: true

# Whether we allow AMD switchable graphics.
- name: layers.amd-switchable-gfx.enabled
  type: bool
  value: true
  mirror: once

# Whether to use async panning and zooming.
- name: layers.async-pan-zoom.enabled
  type: bool
  value: true
  mirror: once
  do_not_use_directly: true

# Preference that when switched at runtime will run a series of benchmarks
# and output the result to stderr.
- name: layers.bench.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: layers.bufferrotation.enabled
  type: bool
  value: true
  mirror: once

- name: layers.child-process-shutdown
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: layers.componentalpha.enabled
  type: bool
#ifdef MOZ_GFX_OPTIMIZE_MOBILE
  # Nb: we ignore this pref if MOZ_GFX_OPTIMIZE_MOBILE is defined, as if this
  # pref was always false. But we go to the effort of setting it to false so
  # that telemetry's reporting of the pref value is more likely to reflect what
  # the code is doing.
  value: false
#else
  value: true
#endif
  mirror: once
  do_not_use_directly: true

- name: layers.d3d11.force-warp
  type: bool
  value: false
  mirror: once

- name: layers.d3d11.enable-blacklist
  type: bool
  value: true
  mirror: once

# Enable DEAA antialiasing for transformed layers in the compositor.
- name: layers.deaa.enabled
  type: RelaxedAtomicBool
#if defined(MOZ_WIDGET_ANDROID)
  value: false
#else
  value: true
#endif
  mirror: always

- name: layers.draw-bigimage-borders
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: layers.draw-borders
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: layers.draw-tile-borders
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: layers.draw-layer-info
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: layers.dump
  type: RelaxedAtomicBool
  value: false
  mirror: always

# If we're dumping layers, also dump the texture data
- name: layers.dump-texture
  type: RelaxedAtomicBool
  value: false
  mirror: always

#ifdef MOZ_DUMP_PAINTING
-   name: layers.dump-decision
    type: RelaxedAtomicBool
    value: false
    mirror: always
#endif

- name: layers.dump-client-layers
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: layers.dump-host-layers
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: layers.compositing-tiles.width
  type: RelaxedAtomicInt32
  value: 1024
  mirror: always

- name: layers.compositing-tiles.height
  type: RelaxedAtomicInt32
  value: 1024
  mirror: always

# 0 is "no change" for contrast, positive values increase it, negative values
# decrease it until we hit mid gray at -1 contrast, after that it gets weird.
- name: layers.effect.contrast
  type: AtomicFloat
  value: 0.0f
  mirror: always

- name: layers.effect.grayscale
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: layers.effect.invert
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: layers.enable-tiles
  type: bool
#if defined(XP_MACOSX) || defined (XP_OPENBSD)
  value: true
#else
  value: false
#endif
  mirror: once

- name: layers.enable-tiles-if-skia-pomtp
  type: bool
#if defined(XP_WIN)
  value: true
#else
  value: false
#endif
  mirror: once

- name: layers.flash-borders
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Force all possible layers to be always active layers.
- name: layers.force-active
  type: bool
  value: false
  mirror: always

- name: layers.force-shmem-tiles
  type: bool
  value: false
  mirror: once

- name: layers.draw-mask-debug
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: layers.force-synchronous-resize
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether to enable arbitrary layer geometry for OpenGL compositor.
- name: layers.geometry.opengl.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether to enable arbitrary layer geometry for Basic compositor.
- name: layers.geometry.basic.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

 # Whether to enable arbitrary layer geometry for DirectX compositor.
- name: layers.geometry.d3d11.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: layers.gpu-process.allow-software
  type: bool
#if defined(XP_WIN)
  value: true
#else
  value: false
#endif
  mirror: once

- name: layers.gpu-process.enabled
  type: bool
#if defined(XP_WIN)
  value: true
#else
  value: false
#endif
  mirror: once

- name: layers.gpu-process.force-enabled
  type: bool
  value: false
  mirror: once

- name: layers.gpu-process.ipc_reply_timeout_ms
  type: int32_t
  value: 10000
  mirror: once

# How many unstable GPU process restarts we allow for a given configuration.
- name: layers.gpu-process.max_restarts
  type: RelaxedAtomicInt32
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
  #if defined(NIGHTLY_BUILD)
  value: 6
  #else
  value: 3
  #endif
#else
  value: 1
#endif
  mirror: always

# How many frames we must render before declaring the GPU process stable, and
# allow restarts without it counting against our maximum restarts.
- name: layers.gpu-process.stable.frame-threshold
  type: RelaxedAtomicUint32
  value: 10
  mirror: always

# How many milliseconds the GPU process must have lived before we accept that
# it is stable, and allow restarts without it counting against our maximum
# restarts.
- name: layers.gpu-process.stable.min-uptime-ms
  type: RelaxedAtomicInt32
  value: 4 * 60000
  mirror: always

# Note: This pref will only be used if it is less than layers.gpu-process.max_restarts.
- name: layers.gpu-process.max_restarts_with_decoder
  type: RelaxedAtomicInt32
  value: 0
  mirror: always

- name: layers.gpu-process.startup_timeout_ms
  type: int32_t
  value: 5000
  mirror: once

- name: layers.gpu-process.crash-also-crashes-browser
  type: bool
  value: false
  mirror: always

- name: layers.low-precision-buffer
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: layers.low-precision-opacity
  type: AtomicFloat
  value: 1.0f
  mirror: always

- name: layers.low-precision-resolution
  type: AtomicFloat
  value: 0.25f
  mirror: always

# Max number of layers per container. See Overwrite in mobile prefs.
- name: layers.max-active
  type: RelaxedAtomicInt32
  value: -1
  mirror: always


# Whether to animate simple opacity and transforms on the compositor.
- name: layers.offmainthreadcomposition.async-animations
  type: bool
  value: true
  mirror: always

# Whether to log information about off main thread animations to stderr.
- name: layers.offmainthreadcomposition.log-animations
  type: bool
  value: false
  mirror: always

- name: layers.offmainthreadcomposition.force-disabled
  type: bool
  value: false
  mirror: once

# Compositor target frame rate. NOTE: If vsync is enabled the compositor
# frame rate will still be capped.
# -1 -> default (match layout.frame_rate or 60 FPS)
# 0  -> full-tilt mode: Recomposite even if not transaction occured.
- name: layers.offmainthreadcomposition.frame-rate
  type: RelaxedAtomicInt32
  value: -1
  mirror: always

- name: layers.omtp.capture-limit
  type: uint32_t
  value: 25 * 1024 * 1024
  mirror: once

- name: layers.omtp.dump-capture
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: layers.omtp.paint-workers
  type: int32_t
  value: -1
  mirror: once

- name: layers.omtp.release-capture-on-main-thread
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: layers.orientation.sync.timeout
  type: RelaxedAtomicUint32
  value: (uint32_t)0
  mirror: always

#ifdef XP_WIN
-   name: layers.prefer-opengl
    type: bool
    value: false
    mirror: once
#endif

- name: layers.progressive-paint
  type: RelaxedAtomicBool
  value: false
  mirror: always
  do_not_use_directly: true

# Copy-on-write canvas.
- name: layers.shared-buffer-provider.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: layers.single-tile.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# We allow for configurable and rectangular tile size to avoid wasting memory
# on devices whose screen size does not align nicely to the default tile size.
# Although layers can be any size, they are often the same size as the screen,
# especially for width.
- name: layers.tile-width
  type: int32_t
  value: 512
  mirror: once

- name: layers.tile-height
  type: int32_t
  value: 512
  mirror: once

- name: layers.tile-initial-pool-size
  type: uint32_t
  value: (uint32_t)50
  mirror: once

- name: layers.tile-pool-unused-size
  type: uint32_t
  value: (uint32_t)10
  mirror: once

- name: layers.tile-pool-shrink-timeout
  type: uint32_t
  value: (uint32_t)50
  mirror: once

- name: layers.tile-pool-clear-timeout
  type: uint32_t
  value: (uint32_t)5000
  mirror: once

# If this is set the tile size will only be treated as a suggestion.
# On B2G we will round this to the stride of the underlying allocation.
# On any platform we may later use the screen size and ignore
# tile-width/tile-height entirely. Its recommended to turn this off
# if you change the tile size.
- name: layers.tiles.adjust
  type: bool
  value: true
  mirror: once

- name: layers.tiles.edge-padding
  type: bool
  value: @IS_ANDROID@
  mirror: once

- name: layers.tiles.fade-in.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: layers.tiles.fade-in.duration-ms
  type: RelaxedAtomicUint32
  value: 250
  mirror: always

- name: layers.tiles.retain-back-buffer
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: layers.transaction.warning-ms
  type: RelaxedAtomicUint32
  value: 200
  mirror: always

- name: layers.uniformity-info
  type: bool
  value: false
  mirror: once

- name: layers.use-image-offscreen-surfaces
  type: bool
  value: true
  mirror: once

- name: layers.recycle-allocator-rdd
  type: bool
  value: true
  mirror: once

- name: layers.iosurfaceimage.recycle-limit
  type: RelaxedAtomicUint32
  value: 15
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "layout."
#---------------------------------------------------------------------------

# Debug-only pref to force enable the AccessibleCaret. If you want to
# control AccessibleCaret by mouse, you'll need to set
# "layout.accessiblecaret.hide_carets_for_mouse_input" to false.
- name: layout.accessiblecaret.enabled
  type: bool
  value: false
  mirror: always

# Enable the accessible caret on platforms/devices
# that we detect have touch support. Note that this pref is an
# additional way to enable the accessible carets, rather than
# overriding the layout.accessiblecaret.enabled pref.
- name: layout.accessiblecaret.enabled_on_touch
  type: bool
  value: true
  mirror: always

# By default, carets become tilt only when they are overlapping.
- name: layout.accessiblecaret.always_tilt
  type: bool
  value: false
  mirror: always

# Show caret in cursor mode when long tapping on an empty content. This
# also changes the default update behavior in cursor mode, which is based
# on the emptiness of the content, into something more heuristic. See
# AccessibleCaretManager::UpdateCaretsForCursorMode() for the details.
- name: layout.accessiblecaret.caret_shown_when_long_tapping_on_empty_content
  type: bool
  value: false
  mirror: always

# 0 = by default, always hide carets for selection changes due to JS calls.
# 1 = update any visible carets for selection changes due to JS calls,
#     but don't show carets if carets are hidden.
# 2 = always show carets for selection changes due to JS calls.
- name: layout.accessiblecaret.script_change_update_mode
  type: int32_t
  value: 0
  mirror: always

# Allow one caret to be dragged across the other caret without any limitation.
# This matches the built-in convention for all desktop platforms.
- name: layout.accessiblecaret.allow_dragging_across_other_caret
  type: bool
  value: true
  mirror: always

# Optionally provide haptic feedback on long-press selection events.
- name: layout.accessiblecaret.hapticfeedback
  type: bool
  value: false
  mirror: always

# Smart phone-number selection on long-press is not enabled by default.
- name: layout.accessiblecaret.extend_selection_for_phone_number
  type: bool
  value: false
  mirror: always

# Keep the accessible carets hidden when the user is using mouse input (as
# opposed to touch/pen/etc.).
- name: layout.accessiblecaret.hide_carets_for_mouse_input
  type: bool
  value: true
  mirror: always

# CSS attributes (width, height, margin-left) of the AccessibleCaret in CSS
# pixels.
- name: layout.accessiblecaret.width
  type: float
  value: 34.0f
  mirror: always

- name: layout.accessiblecaret.height
  type: float
  value: 36.0f
  mirror: always

- name: layout.accessiblecaret.margin-left
  type: float
  value: -18.5f
  mirror: always

- name: layout.accessiblecaret.transition-duration
  type: float
  value: 250.0f
  mirror: always

# Simulate long tap events to select words. Mainly used in manual testing
# with mouse.
- name: layout.accessiblecaret.use_long_tap_injector
  type: bool
  value: false
  mirror: always

# Whether we should layerize all animated images (if otherwise possible).
- name: layout.animated-image-layers.enabled
  type: bool
  value: false
  mirror: always

# One of several prefs affecting the maximum area to pre-render when animating
# a large element on the compositor.
# This pref enables transform (and transform like properties) animations on a
# large element run on the compositor with rendering partial area of the
# element on the main thread instead of rendering the whole area.  Once the
# animation tried to composite out of the partial rendered area, the animation
# is rendered again with the latest visible partial area.
- name: layout.animation.prerender.partial
  type: RelaxedAtomicBool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

# One of several prefs affecting the maximum area to pre-render when animating
# a large element on the compositor.
# This value is applied to both x and y axes and a perfect square contructed
# by the greater axis value which will be capped by the absolute limits is used
# for the partial pre-render area.
- name: layout.animation.prerender.viewport-ratio-limit
  type: AtomicFloat
  value: 1.125f
  mirror: always

# One of several prefs affecting the maximum area to pre-render when animating
# a large element on the compositor.
- name: layout.animation.prerender.absolute-limit-x
  type: RelaxedAtomicUint32
  value: 4096
  mirror: always

# One of several prefs affecting the maximum area to pre-render when animating
# a large element on the compositor.
- name: layout.animation.prerender.absolute-limit-y
  type: RelaxedAtomicUint32
  value: 4096
  mirror: always

# Test-only pref, if this is true, partial pre-rendered transform animations
# get stuck when it reaches to the pre-rendered boundaries and the pre-render
# region is never updated.
- name: layout.animation.prerender.partial.jank
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Whether non-standard caption-side values are enabled
- name: layout.css.caption-side-non-standard.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always
  rust: true

# Whether Constructable Stylesheets are enabled in script.
- name: layout.css.constructable-stylesheets.enabled
  type: bool
  value: false
  mirror: always

# Should we look for counter ancestor scopes first?
- name: layout.css.counter-ancestor-scope.enabled
  type: bool
  value: true
  mirror: always

# Whether we get notified of history queries for visited even if unvisited.
- name: layout.css.notify-of-unvisited
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether we always restyle / repaint as a result of a visited query
- name: layout.css.always-repaint-on-unvisited
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Make `zoom` a `transform` + `transform-origin` alias.
- name: layout.css.zoom-transform-hack.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always
  rust: true

# Whether the `:autofill` pseudo-class is exposed to content.
- name: layout.css.autofill.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always
  rust: true

# Whether the `:-moz-submit-invalid` pseudo-class is exposed to content.
- name: layout.css.moz-submit-invalid.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always
  rust: true

# Whether the `-moz-control-character-visibility` property is exposed to
# content.
#
# Only for testing purposes.
- name: layout.css.moz-control-character-visibility.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always
  rust: true

# Whether the `accent-color` css property is enabled.
- name: layout.css.accent-color.enabled
  type: RelaxedAtomicBool
  value: @IS_NIGHTLY_BUILD@
  mirror: always
  rust: true

# Whether the `aspect-ratio` in css-sizing-4 is enabled.
- name: layout.css.aspect-ratio.enabled
  type: bool
  value: true
  mirror: always
  rust: true

# Is the codepath for using cached scrollbar styles enabled?
- name: layout.css.cached-scrollbar-styles.enabled
  type: bool
  value: true
  mirror: always

# Is path() supported in clip-path?
- name: layout.css.clip-path-path.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always
  rust: true

# Is the image-set() function enabled?
- name: layout.css.image-set.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always
  rust: true

# Are implicit tracks in computed grid templates serialized?
- name: layout.css.serialize-grid-implicit-tracks
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether the bloom filter optimization is applied to attribute names too, not
# only classes / id / namespaces / etc.
- name: layout.css.bloom-filter-attribute-names.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always
  rust: true

# Set the number of device pixels per CSS pixel. A value <= 0 means choose
# automatically based on user settings for the platform (e.g., "UI scale factor"
# on Mac). A positive value is used as-is. This effectively controls the size
# of a CSS "px". This is only used for windows on the screen, not for printing.
- name: layout.css.devPixelsPerPx
  type: AtomicFloat
  value: -1.0f
  mirror: always

# Is support for CSS backdrop-filter enabled?
- name: layout.css.backdrop-filter.enabled
  type: bool
  value: false
  mirror: always

# Should stray control characters be rendered visibly?
- name: layout.css.control-characters.visible
  type: RelaxedAtomicBool
  value: @IS_NOT_RELEASE_OR_BETA@
  mirror: always
  rust: true

# Is support for GeometryUtils.convert*FromNode enabled?
- name: layout.css.convertFromNode.enabled
  type: bool
  value: @IS_NOT_RELEASE_OR_BETA@
  mirror: always

- name: layout.css.cross-fade.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always
  rust: true

# Is support for color-mix on content enabled?
- name: layout.css.color-mix.enabled
  type: RelaxedAtomicBool
  value: @IS_NIGHTLY_BUILD@
  mirror: always
  rust: true

# Is support for DOMMatrix enabled?
- name: layout.css.DOMMatrix.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Is support for DOMQuad enabled?
- name: layout.css.DOMQuad.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Is support for DOMPoint enabled?
- name: layout.css.DOMPoint.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Is support for d property for SVG path element?
- name: layout.css.d-property.enabled
  type: bool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

# Are we emulating -moz-{inline}-box layout using CSS flexbox?
- name: layout.css.emulate-moz-box-with-flex
  type: bool
  value: false
  mirror: always

# Is support for fit-content() enabled?
- name: layout.css.fit-content-function.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always
  rust: true

# Is support for the font-display @font-face descriptor enabled?
- name: layout.css.font-display.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always
  rust: true

# Is support for document.fonts enabled?
- name: layout.css.font-loading-api.enabled
  type: bool
  value: true
  mirror: always

# Is support for the @font-face metrics override descriptors enabled?
- name: layout.css.font-metrics-overrides.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always
  rust: true

# Is support for variation fonts enabled?
- name: layout.css.font-variations.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always
  rust: true

# Is support for the size-adjust @font-face descriptor enabled?
- name: layout.css.size-adjust.enabled
  type: RelaxedAtomicBool
  value: @IS_NIGHTLY_BUILD@
  mirror: always
  rust: true

# Is the optional adjustment-basis value for font-size-adjust enabled?
- name: layout.css.font-size-adjust.basis.enabled
  type: RelaxedAtomicBool
  value: @IS_NIGHTLY_BUILD@
  mirror: always
  rust: true

# Visibility level of font families available to CSS font-matching:
#   1 - only base system fonts
#   2 - also fonts from optional language packs
#   3 - also user-installed fonts
- name: layout.css.font-visibility.level
  type: RelaxedAtomicInt32
  value: 3
  mirror: always

# Is support for GeometryUtils.getBoxQuads enabled?
- name: layout.css.getBoxQuads.enabled
  type: bool
  value: @IS_NOT_RELEASE_OR_BETA@
  mirror: always

# Is support for CSS "grid-template-{columns,rows}: subgrid X" enabled?
- name: layout.css.grid-template-subgrid-value.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always
  rust: true

# Is support for CSS masonry layout enabled?
- name: layout.css.grid-template-masonry-value.enabled
  type: RelaxedAtomicBool
  value: @IS_NIGHTLY_BUILD@
  mirror: always
  rust: true

# Is support for CSS individual transform enabled?
- name: layout.css.individual-transform.enabled
  type: bool
  value: true
  mirror: always

# Is support for CSS initial-letter property enabled?
- name: layout.css.initial-letter.enabled
  type: bool
  value: false
  mirror: always

# Pref to control whether line-height: -moz-block-height is exposed to content.
- name: layout.css.line-height-moz-block-height.content.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always
  rust: true

# Is support for motion-path enabled?
- name: layout.css.motion-path.enabled
  type: bool
  value: true
  mirror: always

# Is support for motion-path ray() enabled?
- name: layout.css.motion-path-ray.enabled
  type: RelaxedAtomicBool
  value: @IS_NIGHTLY_BUILD@
  mirror: always
  rust: true

# Pref to control whether the ::marker property restrictions defined in [1]
# apply.
#
# [1]: https://drafts.csswg.org/css-pseudo-4/#selectordef-marker
- name: layout.css.marker.restricted
  type: RelaxedAtomicBool
  value: true
  mirror: always
  rust: true

# Is support for math-style enabled?
- name: layout.css.math-style.enabled
  type: RelaxedAtomicBool
  value: @IS_NIGHTLY_BUILD@
  mirror: always
  rust: true

# Is support for math-depth enabled?
# This must not be enabled until implementation is complete (see bug 1667090).
- name: layout.css.math-depth.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always
  rust: true

# Pref to control whether @-moz-document rules are enabled in content pages.
- name: layout.css.moz-document.content.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always
  rust: true

# Is -moz-osx-font-smoothing enabled? (Only supported in OSX builds)
- name: layout.css.osx-font-smoothing.enabled
  type: bool
#if defined(XP_MACOSX)
  value: true
#else
  value: false
#endif
  mirror: always

# Is support for CSS overflow-clip-box enabled for non-UA sheets?
- name: layout.css.overflow-clip-box.enabled
  type: bool
  value: false
  mirror: always

# Is support for overscroll-behavior enabled?
- name: layout.css.overscroll-behavior.enabled
  type: bool
  value: true
  mirror: always

- name: layout.css.overflow-logical.enabled
  type: bool
  value: true
  mirror: always

# Enables parsing size properties in page at-rules
- name: layout.css.page-size.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always
  rust: true

# Dictates whether or not the prefers contrast media query will be
# usable.
#   true: prefers-contrast will toggle based on OS and browser settings.
#   false: prefers-contrast will only parse and toggle in the browser
#   chrome and ua.
- name: layout.css.prefers-contrast.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always
  rust: true

# Dictates whether or not the forced-colors media query is enabled.
- name: layout.css.forced-colors.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always
  rust: true

# Is support for -moz-prefixed animation properties enabled?
- name: layout.css.prefixes.animations
  type: bool
  value: true
  mirror: always

# Is support for -moz-border-image enabled?
- name: layout.css.prefixes.border-image
  type: bool
  value: true
  mirror: always

# Is support for -moz-box-sizing enabled?
- name: layout.css.prefixes.box-sizing
  type: bool
  value: true
  mirror: always

# Is support for -moz-prefixed multi-column properties (including column-gap) enabled?
- name: layout.css.prefixes.columns
  type: bool
  value: false
  mirror: always

# Is support for -moz-prefixed font feature properties enabled?
- name: layout.css.prefixes.font-features
  type: bool
  value: true
  mirror: always

# Is support for -moz-prefixed transform properties enabled?
- name: layout.css.prefixes.transforms
  type: bool
  value: true
  mirror: always

# Is support for -moz-prefixed transition properties enabled?
- name: layout.css.prefixes.transitions
  type: bool
  value: true
  mirror: always

# Is CSS error reporting enabled?
- name: layout.css.report_errors
  type: bool
  value: true
  mirror: always

- name: layout.css.resizeobserver.enabled
  type: bool
  value: true
  mirror: always

# Are inter-character ruby annotations enabled?
- name: layout.css.ruby.intercharacter.enabled
  type: bool
  value: false
  mirror: always

- name: layout.css.scroll-behavior.damping-ratio
  type: AtomicFloat
  value: 1.0f
  mirror: always

- name: layout.css.supports-selector.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always
  rust: true

# Is CSSOM-View scroll-behavior and its MSD smooth scrolling enabled?
- name: layout.css.scroll-behavior.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Tuning of the smooth scroll motion used by CSSOM-View scroll-behavior.
# Spring-constant controls the strength of the simulated MSD
# (Mass-Spring-Damper).
- name: layout.css.scroll-behavior.spring-constant
  type: AtomicFloat
  value: 250.0f
  mirror: always

# When selecting the snap point for CSS scroll snapping, the velocity of the
# scroll frame is clamped to this speed, in CSS pixels / s.
- name: layout.css.scroll-snap.prediction-max-velocity
  type: RelaxedAtomicInt32
  value: 2000
  mirror: always

#  When selecting the snap point for CSS scroll snapping, the velocity of the
# scroll frame is integrated over this duration, in seconds.  The snap point
# best suited for this position is selected, enabling the user to perform fling
# gestures.
- name: layout.css.scroll-snap.prediction-sensitivity
  type: AtomicFloat
  value: 0.750f
  mirror: always

# Set the threshold distance in CSS pixels below which scrolling will snap to
# an edge, when scroll snapping is set to "proximity".
- name: layout.css.scroll-snap.proximity-threshold
  type: RelaxedAtomicInt32
  value: 200
  mirror: always

# Is steps(jump-*) supported in easing functions?
- name: layout.css.step-position-jump.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always
  rust: true

# W3C touch-action css property (related to touch and pointer events)
# Note that we turn this on even on platforms/configurations where touch
# events are not supported (e.g. OS X, or Windows with e10s disabled). For
# those platforms we don't handle touch events anyway so it's conceptually
# a no-op.
- name: layout.css.touch_action.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Are counters for implemented CSS properties enabled?
- name: layout.css.use-counters.enabled
  type: bool
  value: true
  mirror: always

# Are counters for unimplemented CSS properties enabled?
- name: layout.css.use-counters-unimplemented.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always
  rust: true

# Should the :visited selector ever match (otherwise :link matches instead)?
- name: layout.css.visited_links_enabled
  type: bool
  value: true
  mirror: always

- name: layout.css.xul-display-values.content.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always
  rust: true

# Pref to control whether display: -moz-box and display: -moz-inline-box are
# parsed in content pages.
- name: layout.css.xul-box-display-values.content.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always
  rust: true

# Whether to block large cursors intersecting UI.
- name: layout.cursor.block.enabled
  type: bool
  value: true
  mirror: always

# The maximum width or height of the cursor we should allow when intersecting
# the UI, in CSS pixels.
- name: layout.cursor.block.max-size
  type: uint32_t
  value: 32
  mirror: always

- name: layout.display-list.build-twice
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Toggle retaining display lists between paints.
- name: layout.display-list.retain
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Toggle retaining display lists between paints.
- name: layout.display-list.retain.chrome
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Set the maximum number of modified frames allowed before doing a full
# display list rebuild.
- name: layout.display-list.rebuild-frame-limit
  type: RelaxedAtomicUint32
  value: 500
  mirror: always

# Pref to dump the display list to the log. Useful for debugging drawing.
- name: layout.display-list.dump
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Pref to dump the display list to the log. Useful for debugging drawing.
- name: layout.display-list.dump-content
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Pref to dump the display list to the log. Useful for debugging drawing.
- name: layout.display-list.dump-parent
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: layout.display-list.show-rebuild-area
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: layout.display-list.flatten-transform
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: layout.display-list.improve-fragmentation
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Are dynamic reflow roots enabled?
- name: layout.dynamic-reflow-roots.enabled
  type: bool
  value: @IS_EARLY_BETA_OR_EARLIER@
  mirror: always

# Enables the <input type=search> custom layout frame with a clear icon.
# Still needs tests and a web-exposed way to remove that icon, see bug 1654288.
- name: layout.forms.input-type-search.enabled
  type: bool
  value: false
  mirror: always

# Pref to control browser frame rate, in Hz. A value <= 0 means choose
# automatically based on knowledge of the platform (or 60Hz if no platform-
# specific information is available).
- name: layout.frame_rate
  type: RelaxedAtomicInt32
  value: -1
  mirror: always

# If it has been this many frame periods since a refresh, assume that painting
# is quiescent (will not happen again soon).
- name: layout.idle_period.required_quiescent_frames
  type: uint32_t
  value: 2
  mirror: always

# The amount of time (milliseconds) needed between an idle period's
# end and the start of the next tick to avoid jank.
- name: layout.idle_period.time_limit
  type: uint32_t
  value: 1
  mirror: always

# The minimum amount of time (milliseconds) required to be remaining
# in the current vsync interval for us to attempt an extra tick, or
# <0 to disable extra ticks entirely.
- name: layout.extra-tick.minimum-ms
  type: int32_t
  value: 4
  mirror: always

# Enable/disable interruptible reflow, which allows reflows to stop
# before completion (and display the partial results) when user events
# are pending.
- name: layout.interruptible-reflow.enabled
  type: bool
  value: true
  mirror: always

- name: layout.min-active-layer-size
  type: int32_t
  value: 64
  mirror: always

- name: layout.paint_rects_separately
  type: bool
  value: true
  mirror: once

# On Android, don't synth mouse move events after scrolling, as they cause
# unexpected user-visible behaviour. Can remove this after bug 1633450 is
# satisfactorily resolved.
- name: layout.reflow.synthMouseMove
  type: bool
  value: @IS_NOT_ANDROID@
  mirror: always

# This pref is to be set by test code only.
- name: layout.scrollbars.always-layerize-track
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Controls caret style and word-delete during text selection.
# 0: Use platform default
# 1: Caret moves and blinks as when there is no selection; word
#    delete deselects the selection and then deletes word.
# 2: Caret moves to selection edge and is not visible during selection;
#    word delete deletes the selection (Mac and Linux default).
# 3: Caret moves and blinks as when there is no selection; word delete
#    deletes the selection.
# Windows default is 1 for word delete behavior, the rest as for 2.
- name: layout.selection.caret_style
  type: int32_t
  value: 0
  mirror: always

# If layout.show_previous_page is true then during loading of a new page we
# will draw the previous page if the new page has painting suppressed.
- name: layout.show_previous_page
  type: bool
  value: true
  mirror: always

- name: layout.smaller-painted-layers
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Pref to stop overlay scrollbars from fading out, for testing purposes.
- name: layout.testing.overlay-scrollbars.always-visible
  type: bool
  value: false
  mirror: always

- name: layout.lower_priority_refresh_driver_during_load
  type: bool
  value: true
  mirror: always

# If > 0, nsRefreshDriver will keep ticking this amount of milliseconds after
# top level page load.
- name: layout.keep_ticking_after_load_ms
  type: uint32_t
  value: 1000
  mirror: always

# Is layout of CSS outline-style:auto enabled?
- name: layout.css.outline-style-auto.enabled
  type: bool
  value: true
  mirror: always

# Pref to control enabling scroll anchoring.
- name: layout.css.scroll-anchoring.enabled
  type: bool
  value: true
  mirror: always

# Pref to control how many consecutive scroll-anchoring adjustments (since the
# most recent user scroll) we'll average, before we consider whether to
# automatically turn off scroll anchoring. When we hit this threshold, the
# actual decision to disable also depends on the
# min-average-adjustment-threshold pref, see below for more details.
#
# Zero disables the heuristic.
- name: layout.css.scroll-anchoring.max-consecutive-adjustments
  type: uint32_t
  value: 10
  mirror: always

# Pref to control whether we should disable scroll anchoring on a scroller
# where at least max-consecutive-adjustments have happened, and which the
# average adjustment ends up being less than this number, in CSS pixels.
#
# So, for example, given max-consecutive-adjustments=10 and
# min-average-adjustment-treshold=3, we'll block scroll anchoring if there have
# been 10 consecutive adjustments without a user scroll or more, and the
# average offset difference between them amount to less than 3 CSS pixels.
- name: layout.css.scroll-anchoring.min-average-adjustment-threshold
  type: uint32_t
  value: 3
  mirror: always

# Pref to control disabling scroll anchoring suppression triggers, see
#
# https://drafts.csswg.org/css-scroll-anchoring/#suppression-triggers
#
# Those triggers should be unnecessary after bug 1561450.
- name: layout.css.scroll-anchoring.suppressions.enabled
  type: bool
  value: true
  mirror: always

- name: layout.css.scroll-anchoring.highlight
  type: bool
  value: false
  mirror: always

# Are shared memory User Agent style sheets enabled?
- name: layout.css.shared-memory-ua-sheets.enabled
  type: bool
  value: true
  mirror: always

# Is support for -webkit-line-clamp enabled?
- name: layout.css.webkit-line-clamp.enabled
  type: bool
  value: true
  mirror: always

# Whether the computed value of line-height: normal returns the `normal`
# keyword rather than a pixel value based on the first available font.
#
# Only enabled on Nightly and early beta, at least for now.
#
# It'd be nice to make numbers compute also to themselves, but it looks like
# everybody agrees on turning them into pixels, see the discussion starting
# from [1].
#
# [1]: https://github.com/w3c/csswg-drafts/issues/3749#issuecomment-477287453
- name: layout.css.line-height.normal-as-resolved-value.enabled
  type: bool
  value: true
  mirror: always

# Whether :is() and :where() ignore errors inside their selector lists
# internally, rather than failing to parse altogether.
#
# See https://github.com/w3c/csswg-drafts/issues/3264
- name: layout.css.is-and-where-better-error-recovery.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always
  rust: true

# Is 'content:none' supported on (non-pseudo) elements?
- name: layout.css.element-content-none.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always
  rust: true

# Whether frame visibility tracking is enabled globally.
- name: layout.framevisibility.enabled
  type: bool
  value: true
  mirror: always

# The fraction of the scrollport we allow to horizontally scroll by before we
# schedule an update of frame visibility.
- name: layout.framevisibility.amountscrollbeforeupdatehorizontal
  type: int32_t
  value: 2
  mirror: always

# The fraction of the scrollport we allow to vertically scroll by before we
# schedule an update of frame visibility.
- name: layout.framevisibility.amountscrollbeforeupdatevertical
  type: int32_t
  value: 2
  mirror: always

# The number of scrollports wide to expand when tracking frame visibility.
- name: layout.framevisibility.numscrollportwidths
  type: uint32_t
#ifdef ANDROID
  value: 1
#else
  value: 0
#endif
  mirror: always

# The number of scrollports high to expand when tracking frame visibility.
- name: layout.framevisibility.numscrollportheights
  type: uint32_t
  value: 1
  mirror: always

# Test only.
- name: layout.dynamic-toolbar-max-height
  type: RelaxedAtomicInt32
  value: 0
  mirror: always

# Controls double click and Alt+Arrow word selection behavior.
- name: layout.word_select.eat_space_to_next_word
  type: bool
#ifdef XP_WIN
  value: true
#else
  value: false
#endif
  mirror: always

- name: layout.word_select.stop_at_punctuation
  type: bool
  value: true
  mirror: always

# Whether underscore should be treated as a word-breaking character for
# word selection/arrow-key movement purposes.
- name: layout.word_select.stop_at_underscore
  type: bool
  value: false
  mirror: always

# Should deprecated plugin behavior fallback to normal behavior or use
# the experimental design.
- name: layout.use-plugin-fallback
  type: bool
  value: false
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "mathml."
#---------------------------------------------------------------------------

# Whether to disable deprecated style attributes background, color, fontfamily,
# fontsize, fontstyle and fontweight.
- name: mathml.deprecated_style_attributes.disabled
  type: bool
  value: true
  mirror: always

# Whether to disable deprecated "radical" notation for the menclose element.
- name: mathml.deprecated_menclose_notation_radical.disabled
  type: bool
  value: true
  mirror: always

# Whether to disable legacy names "small", "normal" and "big" for the
# mathsize attribute.
- name: mathml.mathsize_names.disabled
  type: bool
  value: true
  mirror: always

# Whether to disable legacy names "thickmathspace", "mediummathspace",
# "thickmathspace" etc for length attributes.
- name: mathml.mathspace_names.disabled
  type: bool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

# Whether to disable the mfrac bevelled  attribute.
- name: mathml.mfrac_bevelled_attribute.disabled
  type: bool
  value: true
  mirror: always

# Whether to disable legacy names "thin", "thick" and "medium" for the
# linethickness attribute of the mfrac element.
- name: mathml.mfrac_linethickness_names.disabled
  type: bool
  value: true
  mirror: always

# Whether to disable deprecated numalign/denomalign/align attributes
- name: mathml.deprecated_alignment_attributes.disabled
  type: bool
  value: true
  mirror: always

# Whether to disable subscriptshift and superscriptshift attributes.
- name: mathml.script_shift_attributes.disabled
  type: bool
  value: true
  mirror: always

# Whether to disable the scriptminsize attribute.
# Note that this only disables parsing, not the default effect when no attribute
# is unspecified.
- name: mathml.scriptminsize_attribute.disabled
  type: bool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

# Whether to disable the scriptsizemultiplier attribute.
- name: mathml.scriptsizemultiplier_attribute.disabled
  type: bool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

# Whether to disable support for XLink on MathML elements.
- name: mathml.xlink.disabled
  type: bool
  value: true
  mirror: always

# Whether to disable support for stretching operators with STIXGeneral fonts.
# macos still has the deprecated STIXGeneral font pre-installed.
- name: mathml.stixgeneral_operator_stretching.disabled
  type: bool
#if defined(XP_MACOSX)
  value: @IS_NIGHTLY_BUILD@
#else
  value: true
#endif
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "media."
#---------------------------------------------------------------------------


# This pref defines what the blocking policy would be used in blocking autoplay.
# 0 : use sticky activation (default)
# https://html.spec.whatwg.org/multipage/interaction.html#sticky-activation
# 1 : use transient activation (the transient activation duration can be
#     adjusted by the pref `dom.user_activation.transient.timeout`)
# https://html.spec.whatwg.org/multipage/interaction.html#transient-activation
# 2 : user input depth (allow autoplay when the play is trigged by user input
#     which is determined by the user input depth)
- name: media.autoplay.blocking_policy
  type: uint32_t
  value: 0
  mirror: always

# File-backed MediaCache size.
- name: media.cache_size
  type: RelaxedAtomicUint32
  value: 512000   # Measured in KiB
  mirror: always

# Size of file backed MediaCache while on a connection which is cellular (3G,
# etc), and thus assumed to be "expensive".
- name: media.cache_size.cellular
  type: RelaxedAtomicUint32
  value: 32768   # Measured in KiB
  mirror: always

# Whether cubeb is sandboxed
- name: media.cubeb.sandbox
  type: bool
  mirror: always
#if defined(XP_LINUX) && !defined(MOZ_WIDGET_ANDROID)
  value: true
#elif defined(XP_WIN) && !defined(_ARM64_)
  value: true
#else
  value: false
#endif

# Whether or not to pass AUDCLNT_STREAMOPTIONS_RAW when initializing audio
# streams when using WASAPI.
# 0 - don't use RAW streams
# 1 - use RAW streams for input streams only
# 2 - use RAW streams for output streams only
# 3 - use RAW streams for input and output streams
#if defined (XP_WIN)
- name: media.cubeb.wasapi-raw
  type: RelaxedAtomicUint32
  mirror: always
  value: 0
#endif // XP_WIN

# ClockDrift desired buffering in milliseconds
- name: media.clockdrift.buffering
  type: int32_t
  mirror: always
  value: 50

# If a resource is known to be smaller than this size (in kilobytes), a
# memory-backed MediaCache may be used; otherwise the (single shared global)
# file-backed MediaCache is used.
- name: media.memory_cache_max_size
  type: uint32_t
  value: 8192        # Measured in KiB
  mirror: always

# Don't create more memory-backed MediaCaches if their combined size would go
# above this absolute size limit.
- name: media.memory_caches_combined_limit_kb
  type: uint32_t
  value: 524288
  mirror: always

# Don't create more memory-backed MediaCaches if their combined size would go
# above this relative size limit (a percentage of physical memory).
- name: media.memory_caches_combined_limit_pc_sysmem
  type: uint32_t
  value: 5           # A percentage
  mirror: always

# When a network connection is suspended, don't resume it until the amount of
# buffered data falls below this threshold (in seconds).
- name: media.cache_resume_threshold
  type: RelaxedAtomicUint32
  value: 30
  mirror: always
- name: media.cache_resume_threshold.cellular
  type: RelaxedAtomicUint32
  value: 10
  mirror: always

# Stop reading ahead when our buffered data is this many seconds ahead of the
# current playback position. This limit can stop us from using arbitrary
# amounts of network bandwidth prefetching huge videos.
- name: media.cache_readahead_limit
  type: RelaxedAtomicUint32
  value: 60
  mirror: always
- name: media.cache_readahead_limit.cellular
  type: RelaxedAtomicUint32
  value: 30
  mirror: always

# MediaCapabilities
- name: media.mediacapabilities.drop-threshold
  type: RelaxedAtomicInt32
  value: 95
  mirror: always

- name: media.mediacapabilities.from-database
  type: RelaxedAtomicBool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

# AudioSink
- name: media.resampling.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# libcubeb backend implements .get_preferred_channel_layout
- name: media.forcestereo.enabled
  type: RelaxedAtomicBool
#if defined(XP_WIN) || defined(XP_DARWIN) || defined(MOZ_PULSEAUDIO)
  value: false
#else
  value: true
#endif
  mirror: always

# MediaSource

# Whether to enable MediaSource support.
- name: media.mediasource.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: media.mediasource.mp4.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: media.mediasource.webm.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Check if vp9 is enabled by default in mediasource. False on Android.
# If disabled, vp9 will only be enabled under some conditions:
# - h264 HW decoding is not supported
# - mp4 is not enabled
# - Device was deemed fast enough to decode VP9 via the VP9Benchmark utility
# - A VP9 HW decoder is present.
- name: media.mediasource.vp9.enabled
  type: RelaxedAtomicBool
  value: @IS_NOT_ANDROID@
  mirror: always

- name: media.mediasource.webm.audio.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether to enable MediaSource v2 support.
- name: media.mediasource.experimental.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# VideoSink
- name: media.ruin-av-sync.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Encrypted Media Extensions
- name: media.eme.enabled
  type: bool
#if defined(XP_LINUX) && !defined(MOZ_WIDGET_ANDROID)
  # On Linux EME is visible but disabled by default. This is so that the "Play
  # DRM content" checkbox in the Firefox UI is unchecked by default. DRM
  # requires downloading and installing proprietary binaries, which users on an
  # open source operating systems didn't opt into. The first time a site using
  # EME is encountered, the user will be prompted to enable DRM, whereupon the
  # EME plugin binaries will be downloaded if permission is granted.
  value: false
#else
  value: true
#endif
  mirror: always

# Whether we expose the functionality proposed in
# https://github.com/WICG/encrypted-media-encryption-scheme/blob/master/explainer.md
# I.e. if true, apps calling navigator.requestMediaKeySystemAccess() can pass
# an optional encryption scheme as part of MediaKeySystemMediaCapability
# objects. If a scheme is present when we check for support, we must ensure we
# support that scheme in order to provide key system access.
- name: media.eme.encrypted-media-encryption-scheme.enabled
  type: bool
  value: false
  mirror: always

# Do we need explicit approval from the application to allow access to EME?
# If true, Gecko will ask for permission before allowing MediaKeySystemAccess.
# At time of writing this is aimed at GeckoView, and setting this to true
# outside of GeckoView or test environments will likely break EME.
- name: media.eme.require-app-approval
  type: bool
  value: false
  mirror: always

- name: media.eme.audio.blank
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: media.eme.video.blank
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: media.eme.chromium-api.video-shmems
  type: RelaxedAtomicUint32
  value: 6
  mirror: always

# Is support for MediaKeys.getStatusForPolicy enabled?
- name: media.eme.hdcp-policy-check.enabled
  type: bool
  value: false
  mirror: always

- name: media.clearkey.persistent-license.enabled
  type: bool
  value: false
  mirror: always

- name: media.cloneElementVisually.testing
  type: bool
  value: false
  mirror: always

#if defined(XP_LINUX) && defined(MOZ_SANDBOX)
  # Whether to allow, on a Linux system that doesn't support the necessary
  # sandboxing features, loading Gecko Media Plugins unsandboxed.  However, EME
  # CDMs will not be loaded without sandboxing even if this pref is changed.
-   name: media.gmp.insecure.allow
    type: RelaxedAtomicBool
    value: false
    mirror: always
#endif

#ifdef XP_MACOSX
  # These prefs control whether or not a universal build running on
  # an Apple Silicon machine will attempt to use an x64 Widevine or
  # OpenH264 plugin. This requires launching the GMP child process
  # executable in x64 mode. We expect to allow this for Widevine until
  # an arm64 version of Widevine is made available. We don't expect
  # to need to allow this for OpenH264.
  #
  # Allow a Widevine GMP x64 process to be executed on ARM builds.
- name: media.gmp-widevinecdm.allow-x64-plugin-on-arm64
  type: RelaxedAtomicBool
  value: true
  mirror: always

  # Don't allow an OpenH264 GMP x64 process to be executed on ARM builds.
- name: media.gmp-gmpopenh264.allow-x64-plugin-on-arm64
  type: RelaxedAtomicBool
  value: false
  mirror: always
#endif

# Specifies whether the PDMFactory can create a test decoder that just outputs
# blank frames/audio instead of actually decoding. The blank decoder works on
# all platforms.
- name: media.use-blank-decoder
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: media.gpu-process-decoder
  type: RelaxedAtomicBool
#if defined(XP_WIN)
  value: true
#else
  value: false
#endif
  mirror: always

- name: media.rdd-process.enabled
  type: RelaxedAtomicBool
#if defined(XP_WIN)
  value: true
#elif defined(XP_MACOSX)
  value: true
#elif defined(XP_LINUX) && !defined(ANDROID)
  value: true
#elif defined(XP_OPENBSD)
  value: true
#else
  value: false
#endif
  mirror: always

- name: media.rdd-retryonfailure.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: media.rdd-process.startup_timeout_ms
  type: RelaxedAtomicInt32
  value: 5000
  mirror: always

#ifdef MOZ_FFMPEG
- name: media.rdd-ffmpeg.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always
#endif

#ifdef MOZ_FFVPX
- name: media.rdd-ffvpx.enabled
  type: RelaxedAtomicBool
#if defined(XP_WIN)
  value: true
#elif defined(XP_MACOSX)
  value: true
#elif defined(XP_LINUX) && !defined(ANDROID)
  value: true
#elif defined(XP_OPENBSD)
  value: true
#else
  value: false
#endif
  mirror: always
#endif

#ifdef MOZ_WMF
- name: media.rdd-wmf.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always
#endif

#ifdef MOZ_APPLEMEDIA
- name: media.rdd-applemedia.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always
#endif

- name: media.rdd-theora.enabled
  type: RelaxedAtomicBool
#if defined(XP_WIN)
  value: true
#elif defined(XP_MACOSX)
  value: true
#elif defined(XP_LINUX) && !defined(ANDROID)
  value: true
#elif defined(XP_OPENBSD)
  value: true
#else
  value: false
#endif
  mirror: always

- name: media.rdd-vorbis.enabled
  type: RelaxedAtomicBool
#if defined(XP_WIN)
  value: true
#elif defined(XP_MACOSX)
  value: true
#elif defined(XP_LINUX) && !defined(ANDROID)
  value: true
#elif defined(XP_OPENBSD)
  value: true
#else
  value: false
#endif
  mirror: always

- name: media.rdd-vpx.enabled
  type: RelaxedAtomicBool
#if defined(XP_WIN)
  value: true
#elif defined(XP_MACOSX)
  value: true
#elif defined(XP_LINUX) && !defined(ANDROID)
  value: true
#elif defined(XP_OPENBSD)
  value: true
#else
  value: false
#endif
  mirror: always

- name: media.rdd-wav.enabled
  type: RelaxedAtomicBool
#if defined(XP_WIN)
  value: true
#elif defined(XP_MACOSX)
  value: true
#elif defined(XP_LINUX) && !defined(ANDROID)
  value: true
#elif defined(XP_OPENBSD)
  value: true
#else
  value: false
#endif
  mirror: always

- name: media.rdd-opus.enabled
  type: RelaxedAtomicBool
#if defined(XP_WIN)
  value: true
#elif defined(XP_MACOSX)
  value: true
#elif defined(XP_LINUX) && !defined(ANDROID)
  value: true
#elif defined(XP_OPENBSD)
  value: true
#else
  value: false
#endif
  mirror: always

- name: media.rdd-webaudio.batch.size
  type: RelaxedAtomicInt32
  value: 100
  mirror: always

#ifdef ANDROID
  # Enable the MediaCodec PlatformDecoderModule by default.
-   name: media.android-media-codec.enabled
    type: RelaxedAtomicBool
    value: true
    mirror: always

-   name: media.android-media-codec.preferred
    type: RelaxedAtomicBool
    value: true
    mirror: always
#endif  # ANDROID

#ifdef MOZ_OMX
-   name: media.omx.enabled
    type: bool
    value: false
    mirror: always
#endif

#ifdef MOZ_FFMPEG
-   name: media.ffmpeg.enabled
    type: RelaxedAtomicBool
  #if defined(XP_MACOSX)
    value: false
  #else
    value: true
  #endif
    mirror: always

-   name: media.libavcodec.allow-obsolete
    type: bool
    value: false
    mirror: always

#ifdef MOZ_WAYLAND
# Disable DMABuf for ffmpeg video textures on Linux
- name: media.ffmpeg.dmabuf-textures.disabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Use VA-API for ffmpeg video playback on Linux
- name: media.ffmpeg.vaapi.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Use DRM display for VA-API ffmpeg video decoding on Linux
- name: media.ffmpeg.vaapi-drm-display.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always
#endif # MOZ_WAYLAND
#endif  # MOZ_FFMPEG

-   name: media.ffvpx.enabled
    type: RelaxedAtomicBool
#ifdef MOZ_FFVPX
    value: true
#else
    value: false
#endif
    mirror: always

-   name: media.ffvpx.mp3.enabled
    type: RelaxedAtomicBool
#ifdef MOZ_FFVPX
    value: true
#else
    value: false
#endif
    mirror: always

# Set to true in marionette tests to disable the sanity test
# which would lead to unnecessary start of the RDD process.
-   name: media.sanity-test.disabled
    type: RelaxedAtomicBool
    value: false
    mirror: always

#ifdef MOZ_WMF

-   name: media.wmf.enabled
    type: RelaxedAtomicBool
    value: true
    mirror: always

  # Whether DD should consider WMF-disabled a WMF failure, useful for testing.
-   name: media.decoder-doctor.wmf-disabled-is-failure
    type: bool
    value: false
    mirror: always

-   name: media.wmf.dxva.d3d11.enabled
    type: RelaxedAtomicBool
    value: true
    mirror: always

-   name: media.wmf.dxva.max-videos
    type: RelaxedAtomicUint32
    value: 8
    mirror: always

-   name: media.wmf.use-nv12-format
    type: RelaxedAtomicBool
    value: true
    mirror: always

-   name: media.wmf.force.allow-p010-format
    type: RelaxedAtomicBool
    value: false
    mirror: always

-   name: media.wmf.use-sync-texture
    type: bool
    value: true
    mirror: once

-   name: media.wmf.low-latency.enabled
    type: RelaxedAtomicBool
    value: false
    mirror: always

-   name: media.wmf.low-latency.force-disabled
    type: RelaxedAtomicBool
    value: false
    mirror: always

-   name: media.wmf.skip-blacklist
    type: RelaxedAtomicBool
    value: false
    mirror: always

-   name: media.wmf.amd.highres.enabled
    type: RelaxedAtomicBool
    value: true
    mirror: always

-   name: media.wmf.allow-unsupported-resolutions
    type: RelaxedAtomicBool
    value: false
    mirror: always

-   name: media.wmf.vp9.enabled
    type: bool
    value: true
    mirror: once

#endif  # MOZ_WMF

- name: media.decoder-doctor.testing
  type: bool
  value: false
  mirror: always

- name: media.hardware-video-decoding.force-enabled
  type: bool
  value: false
  mirror: once

# Whether to check the decoder supports recycling.
- name: media.decoder.recycle.enabled
  type: RelaxedAtomicBool
  value: @IS_ANDROID@
  mirror: always

# Should MFR try to skip to the next key frame?
- name: media.decoder.skip-to-next-key-frame.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# When video continues later than the current media time for this period of
# time, then it will trigger skip-to-next-keyframe mechanism. As this aims to
# solve the drop frames issue where video decoding too slow for high
# resolution videos. eg. 4k+. Therefore, the value is is determined by the
# telemetry probe `video_inter_keyframe_max_ms` in the key of `AV,h>2160` which
# shows that 95% video's key frame interval are less than ~5000. We use its
# half value as a threashold to decide whether we should keep decoding in the
# current video position or jump to the next keyframe in order to decode future
# frames in advance.
- name: media.decoder.skip_when_video_too_slow_ms
  type: RelaxedAtomicInt32
  value: 2500
  mirror: always

- name: media.gmp.decoder.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Whether to suspend decoding of videos in background tabs.
- name: media.suspend-bkgnd-video.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Delay, in ms, from time window goes to background to suspending
# video decoders. Defaults to 10 seconds.
- name: media.suspend-bkgnd-video.delay-ms
  type: RelaxedAtomicUint32
  value: 10000
  mirror: always

- name: media.dormant-on-pause-timeout-ms
  type: RelaxedAtomicInt32
  value: 5000
  mirror: always

# AudioTrack and VideoTrack support
- name: media.track.enabled
  type: bool
  value: false
  mirror: always

# This pref disables the reception of RTCP. It is used for testing.
- name: media.webrtc.net.force_disable_rtcp_reception
  type: ReleaseAcquireAtomicBool
  value: false
  mirror: always

# TextTrack WebVTT Region extension support.
- name: media.webvtt.regions.enabled
  type: bool
  value: true
  mirror: always

# This pref controls whether dispatch testing-only events.
- name: media.webvtt.testing.events
  type: bool
  value: true
  mirror: always

- name: media.webspeech.synth.force_global_queue
  type: bool
  value: false
  mirror: always

- name: media.webspeech.test.enable
  type: bool
  value: false
  mirror: always

- name: media.webspeech.test.fake_fsm_events
  type: bool
  value: false
  mirror: always

- name: media.webspeech.test.fake_recognition_service
  type: bool
  value: false
  mirror: always

#ifdef MOZ_WEBSPEECH
-   name: media.webspeech.recognition.enable
    type: bool
    value: false
    mirror: always
#endif

- name: media.webspeech.recognition.force_enable
  type: bool
  value: false
  mirror: always

#ifdef MOZ_WEBSPEECH
-   name: media.webspeech.synth.enabled
    type: bool
    value: false
    mirror: always
#endif  # MOZ_WEBSPEECH

- name: media.encoder.webm.enabled
  type: RelaxedAtomicBool
#if defined(MOZ_WEBM_ENCODER)
  value: true
#else
  value: false
#endif
  mirror: always

- name: media.audio-max-decode-error
  type: uint32_t
#if defined(RELEASE_OR_BETA)
  value: 3
#else
  # Zero tolerance in pre-release builds to detect any decoder regression.
  value: 0
#endif
  mirror: always

- name: media.video-max-decode-error
  type: uint32_t
#if defined(RELEASE_OR_BETA)
  value: 2
#else
  # Zero tolerance in pre-release builds to detect any decoder regression.
  value: 0
#endif
  mirror: always

# Are video stats enabled? (Disabling can help prevent fingerprinting.)
- name: media.video_stats.enabled
  type: bool
  value: true
  mirror: always

# Opus
- name: media.opus.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Wave
- name: media.wave.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Ogg
- name: media.ogg.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# WebM
- name: media.webm.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# AV1
- name: media.av1.enabled
  type: RelaxedAtomicBool
#if defined(XP_WIN) && !defined(_ARM64_)
  value: true
#elif defined(XP_MACOSX)
  value: true
#elif defined(MOZ_WIDGET_ANDROID)
  value: @IS_EARLY_BETA_OR_EARLIER@
#elif defined(XP_UNIX)
  value: true
#else
  value: false
#endif
  mirror: always

- name: media.av1.use-dav1d
  type: RelaxedAtomicBool
#if defined(XP_WIN) && !defined(_ARM64_)
  value: true
#elif defined(XP_MACOSX)
  value: true
#elif defined(XP_UNIX)
  value: true
#else
  value: false
#endif
  mirror: always

- name: media.flac.enabled
  type: bool
  value: true
  mirror: always

# Hls
- name: media.hls.enabled
  type: RelaxedAtomicBool
  value: @IS_ANDROID@
  mirror: always

# Max number of HLS players that can be created concurrently. Used only on
# Android and when "media.hls.enabled" is true.
#ifdef ANDROID
-   name: media.hls.max-allocations
    type: uint32_t
    value: 20
    mirror: always
#endif

- name: media.mp4.enabled
  type: RelaxedAtomicBool
#ifdef MOZ_FMP4
  value: true
#else
  value: false
#endif
  mirror: always

# Error/warning handling, Decoder Doctor.
#
# Set to true to force demux/decode warnings to be treated as errors.
- name: media.playback.warnings-as-errors
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Resume video decoding when the cursor is hovering on a background tab to
# reduce the resume latency and improve the user experience.
- name: media.resume-bkgnd-video-on-tabhover
  type: bool
  value: true
  mirror: always

- name: media.videocontrols.lock-video-orientation
  type: bool
  value: @IS_ANDROID@
  mirror: always

# Media Seamless Looping
- name: media.seamless-looping
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: media.autoplay.block-event.enabled
  type: bool
  value: false
  mirror: always

- name: media.media-capabilities.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: media.media-capabilities.screen.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: media.benchmark.vp9.fps
  type: RelaxedAtomicUint32
  value: 0
  mirror: always

- name: media.benchmark.vp9.threshold
  type: RelaxedAtomicUint32
  value: 150
  mirror: always

- name: media.benchmark.vp9.versioncheck
  type: RelaxedAtomicUint32
  value: 0
  mirror: always

- name: media.benchmark.frames
  type: RelaxedAtomicUint32
  value: 300
  mirror: always

- name: media.benchmark.timeout
  type: RelaxedAtomicUint32
  value: 1000
  mirror: always

- name: media.test.video-suspend
  type: RelaxedAtomicBool
  value: false
  mirror: always

# MediaCapture prefs follow

# Enables navigator.mediaDevices and getUserMedia() support. See also
# media.peerconnection.enabled
- name: media.navigator.enabled
  type: bool
  value: true
  mirror: always

# This pref turns off [SecureContext] on the navigator.mediaDevices object, for
# more compatible legacy behavior.
- name: media.devices.insecure.enabled
  type: bool
  value: false
  mirror: always

# If the above pref is also enabled, this pref enabled getUserMedia() support
# in http, bypassing the instant NotAllowedError you get otherwise.
- name: media.getusermedia.insecure.enabled
  type: bool
  value: false
  mirror: always

# Enable tab sharing
- name: media.getusermedia.browser.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# The getDisplayMedia method is always SecureContext regardless of the above two
# prefs. But it is not implemented on android, and can be turned off elsewhere.
- name: media.getdisplaymedia.enabled
  type: bool
  value: @IS_NOT_ANDROID@
  mirror: always

# Turn off any cameras (but not mics) while in the background. This is desirable
# on mobile.
- name: media.getusermedia.camera.background.mute.enabled
  type: bool
  value: @IS_ANDROID@
  mirror: always

# WebRTC prefs follow

# Enables RTCPeerConnection support. Note that, when true, this pref enables
# navigator.mediaDevices and getUserMedia() support as well.
# See also media.navigator.enabled
- name: media.peerconnection.enabled
  type: bool
  value: true
  mirror: always

- name: media.peerconnection.dtmf.enabled
  type: bool
  value: true
  mirror: always

- name: media.peerconnection.identity.enabled
  type: bool
  value: true
  mirror: always

- name: media.peerconnection.rtpsourcesapi.enabled
  type: bool
  value: true
  mirror: always

#ifdef MOZ_WEBRTC
  #ifdef ANDROID
-     name: media.navigator.hardware.vp8_encode.acceleration_remote_enabled
      type: bool
      value: true
      mirror: always

-     name: media.navigator.hardware.vp8_encode.acceleration_enabled
      type: bool
      value: true
      mirror: never

-     name: media.navigator.hardware.vp8_decode.acceleration_enabled
      type: bool
      value: false
      mirror: never
  #endif  # ANDROID

  # Use MediaDataDecoder API for VP8/VP9 in WebRTC. This includes hardware
  # acceleration for decoding.
-   name: media.navigator.mediadatadecoder_vpx_enabled
    type: RelaxedAtomicBool
#if defined(NIGHTLY_BUILD)
    value: true
#else
    value: false
#endif
    mirror: always

  # Use MediaDataDecoder API for H264 in WebRTC. This includes hardware
  # acceleration for decoding.
-   name: media.navigator.mediadatadecoder_h264_enabled
    type: RelaxedAtomicBool
  #if defined(_ARM64_) && defined(XP_WIN)
    value: false
  #else
    value: true
  #endif
    mirror: always

#endif  # MOZ_WEBRTC

# HTMLMediaElement.allowedToPlay should be exposed to web content when
# block autoplay rides the trains to release. Until then, Nightly only.
- name: media.allowed-to-play.enabled
  type: bool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

# Is support for MediaDevices.ondevicechange enabled?
- name: media.ondevicechange.enabled
  type: bool
  value: true
  mirror: always

# Is support for HTMLMediaElement.seekToNextFrame enabled?
- name: media.seekToNextFrame.enabled
  type: bool
  value: true
  mirror: always

# setSinkId will be enabled in bug 1498512. Till then the
# implementation will remain hidden behind this pref (Bug 1152401, Bug 934425).
- name: media.setsinkid.enabled
  type: bool
  value: false
  mirror: always

# Turn on this pref can enable test-only events for media element.
- name: media.testing-only-events
  type: bool
  value: false
  mirror: always

- name: media.useAudioChannelService.testing
  type: bool
  value: false
  mirror: always

- name: media.audioFocus.management
  type: bool
#if defined(MOZ_WIDGET_ANDROID)
  value: true
#else
  value: false
#endif
  mirror: always

- name: media.hardwaremediakeys.enabled
  type: bool
  value: true
  mirror: always

# If this pref is on, then `media.mediacontrol.stopcontrol.timer.ms` would take
# effect and determine the timing to stop controlling media.
- name: media.mediacontrol.stopcontrol.timer
  type: bool
  value: true
  mirror: always

# If media is being paused after a certain period, then we would think that
# media doesn't need to be controlled anymore. Therefore, that media would stop
# listening to the media control key events. The value of this pref is how long
# media would stop listening to the event after it's paused. The default value
# is set to 24 hrs (24*60*60*1000)
- name: media.mediacontrol.stopcontrol.timer.ms
  type: RelaxedAtomicUint32
  value: 86400000
  mirror: always

# If this pref is on, we would stop controlling media after it reaches to the
# end.
- name: media.mediacontrol.stopcontrol.aftermediaends
  type: bool
  value: true
  mirror: always

# We would only use media control to control media which duration is longer
# than this value.
- name: media.mediacontrol.eligible.media.duration.s
  type: AtomicFloat
  value: 3.0f
  mirror: always

- name: media.webrtc.platformencoder
  type: bool
#if defined(MOZ_WIDGET_ANDROID)
  value: true
#else
  value: false
#endif
  mirror: always

- name: media.block-autoplay-until-in-foreground
  type: bool
#if !defined(MOZ_WIDGET_ANDROID)
  value: true
#else
  value: false
#endif
  mirror: always

- name: media.webrtc.hw.h264.enabled
  type: bool
#if defined(MOZ_WIDGET_ANDROID)
  value: true
#else
  value: false
#endif
  mirror: always

 # If true, then we require explicit approval from the embedding app (ex. Fenix)
 # on GeckoView to know if we can allow audible, inaudible media or both kinds
 # of media to autoplay.
- name: media.geckoview.autoplay.request
  type: bool
  value: false
  mirror: always

 # This is used in testing only, in order to skip the prompting process. This
 # pref works only when enabling the pref `media.geckoview.autoplay.request`.
 # 0=prompt as normal, 1=allow all, 2=deny all, 3=allow audible request,
 # 4=deny audible request, 5=allow inaudible request, 6=deny inaudible request.
 # 7=leave all requests pending.
- name: media.geckoview.autoplay.request.testing
  type: uint32_t
  value: 0
  mirror: always

- name: media.mediacontrol.testingevents.enabled
  type: bool
  value: false
  mirror: always

#if defined(XP_MACOSX)
- name: media.macos.screenrecording.oscheck.enabled
  type: bool
  value: true
  mirror: always
#endif

#---------------------------------------------------------------------------
# Prefs starting with "mousewheel."
#---------------------------------------------------------------------------

# This affects how line scrolls from wheel events will be accelerated.
# Factor to be multiplied for constant acceleration.
- name: mousewheel.acceleration.factor
  type: RelaxedAtomicInt32
  value: 10
  mirror: always

# This affects how line scrolls from wheel events will be accelerated.
# Number of mousewheel clicks when acceleration starts.
# Acceleration can be turned off if pref is set to -1.
- name: mousewheel.acceleration.start
  type: RelaxedAtomicInt32
  value: -1
  mirror: always

# Auto-dir is a feature which treats any single-wheel scroll as a scroll in the
# only one scrollable direction if the target has only one scrollable
# direction. For example, if the user scrolls a vertical wheel inside a target
# which is horizontally scrollable but vertical unscrollable, then the vertical
# scroll is converted to a horizontal scroll for that target.
# Note that auto-dir only takes effect for |mousewheel.*.action|s and
# |mousewheel.*.action.override_x|s whose values are 1.
- name: mousewheel.autodir.enabled
  type: bool
  value: false
  mirror: always

# When a wheel scroll is converted due to auto-dir, which side the converted
# scroll goes towards is decided by one thing called "honoured target". If the
# content of the honoured target horizontally starts from right to left, then
# an upward scroll maps to a rightward scroll and a downward scroll maps to a
# leftward scroll; otherwise, an upward scroll maps to a leftward scroll and a
# downward scroll maps to a rightward scroll.
# If this pref is set to false, then consider the scrolling target as the
# honoured target.
# If set to true, then consider the root element in the document where the
# scrolling target is as the honoured target. But note that there's one
# exception: for targets in an HTML document, the real root element(I.e. the
# <html> element) is typically not considered as a root element, but the <body>
# element is typically considered as a root element. If there is no <body>
# element, then consider the <html> element instead.
- name: mousewheel.autodir.honourroot
  type: bool
  value: false
  mirror: always

- name: mousewheel.system_scroll_override.enabled
  type: RelaxedAtomicBool
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
  value: true
#else
  value: false
#endif
  mirror: always

# Prefs for overriding the system mouse wheel scrolling speed on
# content of the web pages.  When
# "mousewheel.system_scroll_override.enabled" is true and the
# system scrolling speed isn't customized by the user, the content scrolling
# speed is multiplied by the following factors.  The value will be used as
# 1/100.  E.g., 200 means 2.00.
# NOTE: Even if "mousewheel.system_scroll_override.enabled" is
# true, when Gecko detects the user customized the system scrolling speed
# settings, the override isn't executed.
- name: mousewheel.system_scroll_override.horizontal.factor
  type: RelaxedAtomicInt32
  value: 200
  mirror: always
- name: mousewheel.system_scroll_override.vertical.factor
  type: RelaxedAtomicInt32
  value: 200
  mirror: always

# Mouse wheel scroll transaction is held even if the mouse cursor is moved.
- name: mousewheel.transaction.ignoremovedelay
  type: RelaxedAtomicInt32
  value: 100
  mirror: always

# Mouse wheel scroll transaction period of time (in milliseconds).
- name: mousewheel.transaction.timeout
  type: RelaxedAtomicInt32
  value: 1500
  mirror: always

# Mouse wheel scroll position is determined by GetMessagePos rather than
# LPARAM msg value
- name: mousewheel.ignore_cursor_position_in_lparam
  type: RelaxedAtomicBool
  value: false
  mirror: always

# If line-height is lower than this value (in device pixels), 1 line scroll
# scrolls this height.
- name: mousewheel.min_line_scroll_amount
  type: int32_t
  value: 5
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "network."
#---------------------------------------------------------------------------

# Force less-secure NTLMv1 when needed (NTLMv2 is the default).
- name: network.auth.force-generic-ntlm-v1
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Sub-resources HTTP-authentication:
#   0 - don't allow sub-resources to open HTTP authentication credentials
#       dialogs
#   1 - allow sub-resources to open HTTP authentication credentials dialogs,
#       but don't allow it for cross-origin sub-resources
#   2 - allow the cross-origin authentication as well.
- name: network.auth.subresource-http-auth-allow
  type: uint32_t
  value: 2
  mirror: always

# Sub-resources HTTP-authentication for cross-origin images:
# - true: It is allowed to present http auth. dialog for cross-origin images.
# - false: It is not allowed.
# If network.auth.subresource-http-auth-allow has values 0 or 1 this pref does
# not have any effect.
- name: network.auth.subresource-img-cross-origin-http-auth-allow
  type: bool
  value: false
  mirror: always

# Resources that are triggered by some non-web-content:
# - true: They are allow to present http auth. dialog
# - false: They are not allow to present http auth. dialog.
- name: network.auth.non-web-content-triggered-resources-http-auth-allow
  type: bool
  value: false
  mirror: always

# Whether to show anti-spoof confirmation prompts when navigating to a url
# with userinfo
- name: network.auth.confirmAuth.enabled
  type: bool
  value: true
  mirror: always

# See the full list of values in nsICookieService.idl.
- name: network.cookie.cookieBehavior
  type: RelaxedAtomicInt32
  value: 0 # accept all cookies
  mirror: always

# See the full list of values in nsICookieService.idl.
- name: network.cookie.rejectForeignWithExceptions.enabled
  type: bool
  value: false
  mirror: always

# The cookieBehavior to be used in Private Browsing mode.
- name: network.cookie.cookieBehavior.pbmode
  type: RelaxedAtomicInt32
  value: 0 # accept all cookies
  mirror: always

# Stale threshold for cookies in seconds.
- name: network.cookie.staleThreshold
  type: uint32_t
  value: 60
  mirror: always

# Cookie lifetime policy. Possible values:
# 0 - accept all cookies
# 1 - deprecated. don't use it.
# 2 - accept as session cookies
# 3 - deprecated. don't use it.
- name: network.cookie.lifetimePolicy
  type: RelaxedAtomicInt32
  value: 0
  mirror: always

- name: network.cookie.sameSite.laxByDefault
  type: bool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

# lax-by-default 2 minutes tollerance for unsafe methods. The value is in seconds.
- name: network.cookie.sameSite.laxPlusPOST.timeout
  type: uint32_t
  value: 120
  mirror: always

- name: network.cookie.sameSite.noneRequiresSecure
  type: bool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

- name: network.cookie.sameSite.schemeful
  type: bool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

- name: network.cookie.thirdparty.sessionOnly
  type: bool
  value: false
  mirror: always

- name: network.cookie.thirdparty.nonsecureSessionOnly
  type: bool
  value: false
  mirror: always

# If we should attempt to race the cache and network.
- name: network.http.rcwn.enabled
  type: bool
  value: true
  mirror: always

- name: network.http.rcwn.cache_queue_normal_threshold
  type: uint32_t
  value: 8
  mirror: always

- name: network.http.rcwn.cache_queue_priority_threshold
  type: uint32_t
  value: 2
  mirror: always

# We might attempt to race the cache with the network only if a resource
# is smaller than this size.
- name: network.http.rcwn.small_resource_size_kb
  type: uint32_t
  value: 256
  mirror: always

- name: network.http.rcwn.min_wait_before_racing_ms
  type: uint32_t
  value: 0
  mirror: always

- name: network.http.rcwn.max_wait_before_racing_ms
  type: uint32_t
  value: 500
  mirror: always

# false=real referer, true=spoof referer (use target URI as referer).
- name: network.http.referer.spoofSource
  type: bool
  value: false
  mirror: always

# Check whether we need to hide referrer when leaving a .onion domain.
# false=allow onion referer, true=hide onion referer (use empty referer).
- name: network.http.referer.hideOnionSource
  type: bool
  value: false
  mirror: always

# Include an origin header on non-GET and non-HEAD requests regardless of CORS.
# 0=never send, 1=send when same-origin only, 2=always send.
- name: network.http.sendOriginHeader
  type: uint32_t
  value: 2
  mirror: always

# Prefs allowing granular control of referers.
# 0=don't send any, 1=send only on clicks, 2=send on image requests as well
- name: network.http.sendRefererHeader
  type: uint32_t
  value: 2
  mirror: always
  do_not_use_directly: true

# The maximum allowed length for a referrer header - 4096 default.
# 0 means no limit.
- name: network.http.referer.referrerLengthLimit
  type: uint32_t
  value: 4096
  mirror: always

#  0=always send, 1=send iff base domains match, 2=send iff hosts match.
- name: network.http.referer.XOriginPolicy
  type: uint32_t
  value: 0
  mirror: always
  do_not_use_directly: true

# 0=full URI, 1=scheme+host+port+path, 2=scheme+host+port.
- name: network.http.referer.trimmingPolicy
  type: uint32_t
  value: 0
  mirror: always
  do_not_use_directly: true

# 0=full URI, 1=scheme+host+port+path, 2=scheme+host+port.
- name: network.http.referer.XOriginTrimmingPolicy
  type: uint32_t
  value: 0
  mirror: always
  do_not_use_directly: true

# Set the default Referrer Policy; to be used unless overriden by the site.
# 0=no-referrer, 1=same-origin, 2=strict-origin-when-cross-origin,
# 3=no-referrer-when-downgrade.
- name: network.http.referer.defaultPolicy
  type: uint32_t
  value: 2
  mirror: always

# Set the default Referrer Policy applied to third-party trackers when the
# default cookie policy is set to reject third-party trackers, to be used
# unless overriden by the site.
# 0=no-referrer, 1=same-origin, 2=strict-origin-when-cross-origin,
# 3=no-referrer-when-downgrade.
# Trim referrers from trackers to origins by default.
- name: network.http.referer.defaultPolicy.trackers
  type: uint32_t
  value: 2
  mirror: always

# Set the Private Browsing Default Referrer Policy, to be used
# unless overriden by the site.
# 0=no-referrer, 1=same-origin, 2=strict-origin-when-cross-origin,
# 3=no-referrer-when-downgrade.
- name: network.http.referer.defaultPolicy.pbmode
  type: uint32_t
  value: 2
  mirror: always

# Set the Private Browsing Default Referrer Policy applied to third-party
# trackers when the default cookie policy is set to reject third-party
# trackers, to be used unless overriden by the site.
# 0=no-referrer, 1=same-origin, 2=strict-origin-when-cross-origin,
# 3=no-referrer-when-downgrade.
# No need to change this pref for trimming referrers from trackers since in
# private windows we already trim all referrers to origin only.
- name: network.http.referer.defaultPolicy.trackers.pbmode
  type: uint32_t
  value: 2
  mirror: always

# Whether certain http header values should be censored out in logs.
# Specifically filters out "authorization" and "proxy-authorization".
- name: network.http.sanitize-headers-in-logs
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether or not we use Windows for SSO to Microsoft sites.
- name: network.http.windows-sso.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# If set to true, IOService.offline depends on IOService.connectivity.
- name: network.offline-mirrors-connectivity
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Enables the predictive service.
- name: network.predictor.enabled
  type: bool
  value: true
  mirror: always

# Set true to allow resolving proxy for localhost
- name: network.proxy.allow_hijacking_localhost
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Allow CookieJarSettings to be unblocked for channels without a document.
# This is for testing only.
- name: network.cookieJarSettings.unblocked_for_testing
  type: bool
  value: false
  mirror: always

- name: network.predictor.enable-hover-on-ssl
  type: bool
  value: false
  mirror: always

- name: network.predictor.enable-prefetch
  type: bool
  value: false
  mirror: always

- name: network.predictor.page-degradation.day
  type: int32_t
  value: 0
  mirror: always
- name: network.predictor.page-degradation.week
  type: int32_t
  value: 5
  mirror: always
- name: network.predictor.page-degradation.month
  type: int32_t
  value: 10
  mirror: always
- name: network.predictor.page-degradation.year
  type: int32_t
  value: 25
  mirror: always
- name: network.predictor.page-degradation.max
  type: int32_t
  value: 50
  mirror: always

- name: network.predictor.subresource-degradation.day
  type: int32_t
  value: 1
  mirror: always
- name: network.predictor.subresource-degradation.week
  type: int32_t
  value: 10
  mirror: always
- name: network.predictor.subresource-degradation.month
  type: int32_t
  value: 25
  mirror: always
- name: network.predictor.subresource-degradation.year
  type: int32_t
  value: 50
  mirror: always
- name: network.predictor.subresource-degradation.max
  type: int32_t
  value: 100
  mirror: always

- name: network.predictor.prefetch-rolling-load-count
  type: int32_t
  value: 10
  mirror: always

- name: network.predictor.prefetch-min-confidence
  type: int32_t
  value: 100
  mirror: always
- name: network.predictor.preconnect-min-confidence
  type: int32_t
  value: 90
  mirror: always
- name: network.predictor.preresolve-min-confidence
  type: int32_t
  value: 60
  mirror: always

- name: network.predictor.prefetch-force-valid-for
  type: int32_t
  value: 10
  mirror: always

- name: network.predictor.max-resources-per-entry
  type: int32_t
  value: 100
  mirror: always

# This is selected in concert with max-resources-per-entry to keep memory
# usage low-ish. The default of the combo of the two is ~50k.
- name: network.predictor.max-uri-length
  type: uint32_t
  value: 500
  mirror: always

# A testing flag.
- name: network.predictor.doing-tests
  type: bool
  value: false
  mirror: always

# Enables `<link rel="preload">` tag and `Link: rel=preload` response header handling.
- name: network.preload
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether to use the network process or not
# Start a separate socket process. Performing networking on the socket process
# is control by a sepparate pref
# ("network.http.network_access_on_socket_process.enabled").
# Changing these prefs requires a restart.
- name: network.process.enabled
  type: RelaxedAtomicBool
  mirror: always
#if defined(ANDROID) || defined(MOZ_THUNDERBIRD)
  value: false # see bug 1641427
#else
  value: @IS_EARLY_BETA_OR_EARLIER@
#endif

# Whether we can send OnDataAvailable to content process directly.
- name: network.send_ODA_to_content_directly
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Perform all network access on the socket process.
# The pref requires "network.process.enabled" to be true.
# Changing these prefs requires a restart.
- name: network.http.network_access_on_socket_process.enabled
  type: RelaxedAtomicBool
  mirror: always
  value: false

# Telemetry of traffic categories. Whether or not to enable HttpTrafficAnalyzer.
- name: network.traffic_analyzer.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether DNS resolution is limited to literals and cached entries.
- name: network.dns.disabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Whether DNS resolution is limited to literals and cached entries.
- name: network.dns.skipTRR-when-parental-control-enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: network.dns.disablePrefetchFromHTTPS
  type: bool
  value: true
  mirror: always

# Max time to shutdown the resolver threads
- name: network.dns.resolver_shutdown_timeout_ms
  type: uint32_t
  value: 2000
  mirror: always

# When true on Windows DNS resolutions for single label domains
# (domains that don't contain a dot) will be resolved using the DnsQuery
# API instead of PR_GetAddrInfoByName
- name: network.dns.dns_query_single_label
  type: RelaxedAtomicBool
  value: false
  mirror: always

# When this pref is true we enforce a 253 character limit on domains we try to
# resolve. See bug 1264117. If it doesn't cause any web-compat issues we can
# remove it in a few releases
- name: network.dns.limit_253_chars
  type: RelaxedAtomicBool
  value: true
  mirror: always

# When this pref is true, we copy the host name to a fresh string before
# calling into getaddrinfo.
- name: network.dns.copy_string_before_call
  type: RelaxedAtomicBool
  value: true
  mirror: always

# The proxy type. See nsIProtocolProxyService.idl
#     PROXYCONFIG_DIRECT   = 0
#     PROXYCONFIG_MANUAL   = 1
#     PROXYCONFIG_PAC      = 2
#     PROXYCONFIG_WPAD     = 4
#     PROXYCONFIG_SYSTEM   = 5
- name: network.proxy.type
  type: RelaxedAtomicUint32
  value: 5
  mirror: always

# Whether the SOCKS proxy should be in charge of DNS resolution.
- name: network.proxy.socks_remote_dns
  type: RelaxedAtomicBool
  value: false
  mirror: always

# When receiving a network change event, the time (in ms) we wait to reload the
# PAC url.
- name: network.proxy.reload_pac_delay
  type: RelaxedAtomicUint32
  value: 2000
  mirror: always

# When parsing "SOCKS" in PAC string, the default version of SOCKS that will be
# used.
- name: network.proxy.default_pac_script_socks_version
  type: RelaxedAtomicUint32
  value: 4
  mirror: always

# Whether to force failover to direct for system requests.
#ifdef MOZ_PROXY_DIRECT_FAILOVER
- name: network.proxy.failover_direct
  type: bool
  value: true
  mirror: always
#endif

# Some requests during a page load are marked as "tail", mainly trackers, but not only.
# This pref controls whether such requests are put to the tail, behind other requests
# emerging during page loading process.
- name: network.http.tailing.enabled
  type: bool
  value: true
  mirror: always

# Whether to run proxy checks when processing Alt-Svc headers.
- name: network.http.altsvc.proxy_checks
  type: bool
  value: true
  mirror: always

- name: network.http.stale_while_revalidate.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether to cache SSL resumption tokens in necko.
- name: network.ssl_tokens_cache_enabled
  type: RelaxedAtomicBool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

# Capacity of the above cache, in kilobytes.
- name: network.ssl_tokens_cache_capacity
  type: RelaxedAtomicUint32
  value: 2048
  mirror: always

# The maximum allowed length for a URL - 1MB default.
- name: network.standard-url.max-length
  type: RelaxedAtomicUint32
  value: 1048576
  mirror: always

# Default global TRR provider
- name: network.trr.default_provider_uri
  type: String
  value: "https://mozilla.cloudflare-dns.com/dns-query"
  mirror: never

# Single TRR request timeout, in milliseconds
- name: network.trr.request_timeout_ms
  type: RelaxedAtomicUint32
  value: 1500
  mirror: always

# Single TRR request timeout, in milliseconds for mode 3
- name: network.trr.request_timeout_mode_trronly_ms
  type: RelaxedAtomicUint32
  value: 30000
  mirror: always

# The timeout of the TRR confirmation request
- name: network.trr.confirmation_timeout_ms
  type: RelaxedAtomicUint32
  value: 6000
  mirror: always

# The timeout of the TRR confirmation request
- name: network.trr.confirmation_telemetry_enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether to send the Accept-Language header for TRR requests
- name: network.trr.send_accept-language_headers
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Whether to send an empty Accept-Encoding header for TRR requests
- name: network.trr.send_empty_accept-encoding_headers
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether to send the User-Agent header for TRR requests
- name: network.trr.send_user-agent_headers
  type: RelaxedAtomicBool
  value: false
  mirror: always

# This pref controls whether to use TRRServiceChannel off main thread.
- name: network.trr.fetch_off_main_thread
  type: RelaxedAtomicBool
  value: true
  mirror: always

# If this pref is false, a task will be dispatched to remove the file from the
# disk and the pref will be set to true.
# It can probably be removed after a few releases.
- name: network.trr.blocklist_cleanup_done
  type: RelaxedAtomicBool
  value: false
  mirror: always

# If we should wait for captive portal confirmation before enabling TRR
- name: network.trr.wait-for-portal
  type: RelaxedAtomicBool
  value: false
  mirror: always

# If we should wait for TRR service confirmation to complete before enabling
# TRR for lookups when fallback is enabled. Confirmation is always skipped when
# global mode is TRR-only (no fallback).
- name: network.trr.wait-for-confirmation
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Normally when confirmation fails we wait for the confirmation to succeed
# before attempting to do TRR. When this pref is true, we optimistically
# assume the confirmation will succeed and might attempt TRR anyway.
# If network.trr.wait-for-confirmation is true, this pref is ignored.
- name: network.trr.attempt-when-retrying-confirmation
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Use GET (rather than POST)
- name: network.trr.useGET
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Allow RFC1918 address in responses?
- name: network.trr.allow-rfc1918
  type: RelaxedAtomicBool
  value: false
  mirror: always

# When true, it only sends AAAA when the system has IPv6 connectivity
- name: network.trr.skip-AAAA-when-not-supported
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether to apply split horizon mitigations when using TRR.
# These include adding the DNS suffix to the excluded domains
- name: network.trr.split_horizon_mitigations
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Explicitly disable ECS (EDNS Client Subnet, RFC 7871)
- name: network.trr.disable-ECS
  type: RelaxedAtomicBool
  value: true
  mirror: always

# When true, the DNS+TRR cache will be cleared when a relevant TRR pref
# changes. (uri, bootstrapAddress, excluded-domains)
- name: network.trr.clear-cache-on-pref-change
  type: RelaxedAtomicBool
  value: true
  mirror: always

# After this many failed TRR requests in a row, consider TRR borked
- name: network.trr.max-fails
  type: RelaxedAtomicUint32
  value: 15
  mirror: always

# When the TRR confirmation is set to CONFIRM_FAILED due to many failures in
# a row, we set a timer to retry. This has an exponential backoff up to
# 64 seconds.
- name: network.trr.retry-timeout-ms
  type: RelaxedAtomicUint32
  value: 125
  mirror: always

# Retry with no TRR when the response contained only 0.0.0.0 or ::
- name: network.trr.fallback-on-zero-response
  type: RelaxedAtomicBool
  value: false
  mirror: always

# If true we parse the /etc/hosts file and exclude any host names from TRR.
# Reading the file is only done once, when TRR is first enabled - this could be
# soon after startup or when the pref is flipped.
- name: network.trr.exclude-etc-hosts
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether to enable odoh.
- name: network.trr.odoh.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# The uri of Oblivious Proxy.
- name: network.trr.odoh.proxy_uri
  type: String
  value: ""
  mirror: never

# The host name of Oblivious Target.
- name: network.trr.odoh.target_host
  type: String
  value: ""
  mirror: never

# The uri path of the odoh uri.
- name: network.trr.odoh.target_path
  type: String
  value: ""
  mirror: never

# The minimum ttl of the DNS record that contains ODoHConfigs.
- name: network.trr.odoh.min_ttl
  type: RelaxedAtomicUint32
  value: 60
  mirror: always

# The uri indicates where to get ODoHConfigs.
- name: network.trr.odoh.configs_uri
  type: String
  value: ""
  mirror: never

# Whether to skip the NS check for the blocked host.
# Note this is used for test only.
- name: network.trr.skip-check-for-blocked-host
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Allow the network changed event to get sent when a network topology or setup
# change is noticed while running.
- name: network.notify.changed
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Allow network detection of IPv6 related changes (bug 1245059)
- name: network.notify.IPv6
  type: RelaxedAtomicBool
#ifdef XP_WIN
  value: false
#else
  value: true
#endif
  mirror: always

# Whether to check the dnsSuffix on network changes
- name: network.notify.dnsSuffixList
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether to check the registry for proxies on network changes that indicate
# that TRR should not be used.
- name: network.notify.checkForProxies
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether to check the registry for NRPT rules on network changes that
# indicate that TRR should not be used.
- name: network.notify.checkForNRPT
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether NotifyIpInterfaceChange should be called immediately after
# registration in order to record the initial state of the network adapters.
- name: network.notify.initial_call
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether to check for DNS resolvers
- name: network.notify.resolvers
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether to use the rust implemented DefaultURI for unknown scheme types
- name: network.url.useDefaultURI
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Force remapping of remote port numbers to allow reaching local testing
# servers or port forwarders listening on non-standard ports.  Note that
# this is not changing the origin URL in the addressbar, only internally
# the port number used.  This is intended to be used along with the
# `network.dns.forceResolve` preference.
#
# The form is:
#   "80,443,808-888=8080; 563=8081"
# this will remap ports for HTTP, HTTPS and the range of 808-888 included
# to use port 8080, and port 563 to go to 8081.
- name: network.socket.forcePort
  type: String
  value: ""
  mirror: never

# Receive buffer size of QUIC socket
- name: network.http.http3.recvBufferSize
  type: RelaxedAtomicInt32
  value: 1048576
  mirror: always

- name: network.http.http3.enable_qlog
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: network.http.http3.enable_0rtt
  type: RelaxedAtomicBool
  value: true
  mirror: always

# When a h3 transaction is inserted in the pending queue, the time (ms) we wait
# to create a TCP backup connection.
- name: network.http.http3.backup_timer_delay
  type: RelaxedAtomicUint32
  value: 100
  mirror: always

# The global half open sockets allowed for creating a backup connection.
- name: network.http.http3.parallel_fallback_conn_limit
  type: RelaxedAtomicUint32
  value: 32
  mirror: always

# When true, a http request will be upgraded to https when HTTPS RR is
# available.
- name: network.dns.upgrade_with_https_rr
  type: RelaxedAtomicBool
  value: @IS_EARLY_BETA_OR_EARLIER@
  mirror: always

# Whether to use HTTPS RR as AltSvc
- name: network.dns.use_https_rr_as_altsvc
  type: RelaxedAtomicBool
  value: @IS_EARLY_BETA_OR_EARLIER@
  mirror: always

# Whether to check for NAT64 using the system resolver
- name: network.connectivity-service.nat64-check
  type: bool
  value: true
  mirror: always

# Manually enter the NAT64 prefix that will be used if IPv4 is unavailable.
# The value is formatted as IPv6 with the least significant bits to be dropped.
# For example, 64:ff9b:: is a common prefix. This will not disable
# the NAT64 check, although the value of this pref will be prioritized.
- name: network.connectivity-service.nat64-prefix
  type: String
  value: ""
  mirror: never

# Whether to enable echconfig.
- name: network.dns.echconfig.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# This pref needs to be worked together with network.dns.echconfig.enabled
# being true and there is no record without ECHConfig.
# When we try all records with ECHConfig in HTTPS RRs and still can't connect,
# this pref indicate whether we can fallback to the origin server.
- name: network.dns.echconfig.fallback_to_origin_when_all_failed
  type: RelaxedAtomicBool
  value: true
  mirror: always

# When true, reset the exclusion list when all records are excluded.
- name: network.dns.httpssvc.reset_exclustion_list
  type: RelaxedAtomicBool
  value: true
  mirror: always

# If the http3 connection cannot be ready after the timeout value here, the
# transaction will start another non-http3 conneciton.
# Setting this value to 0 indicates this feature is disabled.
- name: network.dns.httpssvc.http3_fast_fallback_timeout
  type: RelaxedAtomicUint32
  value: 50
  mirror: always

# Whether to use https rr for speculative connections.
- name: network.dns.use_https_rr_for_speculative_connection
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Whether to force a transaction to wait https rr.
- name: network.dns.force_waiting_https_rr
  type: RelaxedAtomicBool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

# The TTL for negative responses of TXT and HTTPS records.
- name: network.dns.negative_ttl_for_type_record
  type: RelaxedAtomicUint32
  value: 300   # 5 minutes (in seconds)
  mirror: always

- name: network.cache.frecency_array_check_enabled
  type: RelaxedAtomicBool
  value: @IS_EARLY_BETA_OR_EARLIER@
  mirror: always

#  This is used for a temporary workaround for a web-compat issue. If pref is
# true CORS preflight requests are allowed to send client certificates.
- name: network.cors_preflight.allow_client_cert
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Whether to record the telemetry event when a JAR channel is failed to load.
- name: network.jar.record_failure_reason
  type: RelaxedAtomicBool
  value: @IS_EARLY_BETA_OR_EARLIER@
  mirror: always

# Support http3 version1
- name: network.http.http3.support_version1
  type: RelaxedAtomicBool
  value: true
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "nglayout."
#---------------------------------------------------------------------------

# Enable/disable display list invalidation logging --- useful for debugging.
- name: nglayout.debug.invalidation
  type: bool
  value: false
  mirror: always

# Enable/disable widget update area flashing --- only supported with
# BasicLayers (other layer managers always update the entire widget area).
- name: nglayout.debug.widget_update_flashing
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: nglayout.initialpaint.delay
  type: int32_t
  value: 5
  mirror: always

- name: nglayout.initialpaint.delay_in_oopif
  type: int32_t
  value: 5
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "page_load."
#---------------------------------------------------------------------------

# Time in milliseconds during which certain tasks are deprioritized during
# page load.
- name: page_load.deprioritization_period
  type: RelaxedAtomicUint32
  value: 5000
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "permissions."
#---------------------------------------------------------------------------

# 1-Accept, 2-Deny, Any other value: Accept
- name: permissions.default.image
  type: RelaxedAtomicUint32
  value: 1
  mirror: always

- name: permissions.delegation.enabled
  type: bool
  value: true
  mirror: always

- name: permissions.isolateBy.userContext
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: permissions.isolateBy.privateBrowsing
  type: RelaxedAtomicBool
  value: true
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "plain_text."
#---------------------------------------------------------------------------

# When false, text in plaintext documents does not wrap long lines.
- name: plain_text.wrap_long_lines
  type: bool
  value: true
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "plugin."
#---------------------------------------------------------------------------

- name: plugin.state.flash
  type: uint32_t
  # Flash is Click-to-Activate by default on all channels. Disabled for ARM builds.
#if defined(_ARM64_) && defined(XP_WIN)
  value: 0
#else
  value: 1
#endif
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "plugins."
#---------------------------------------------------------------------------

- name: plugins.flashBlock.enabled
  type: bool
  value: false
  mirror: always

- name: plugins.http_https_only
  type: bool
  value: true
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "preferences."
#---------------------------------------------------------------------------

- name: preferences.allow.omt-write
  type: bool
  value: true
  mirror: never

#ifdef DEBUG
  # If set to true, setting a Preference matched to a `Once` StaticPref will
  # assert that the value matches. Such assertion being broken is a clear flag
  # that the Once policy shouldn't be used.
-   name: preferences.check.once.policy
    type: bool
    value: false
    mirror: always

  # If set to true, StaticPrefs Once policy check will be skipped during
  # automation regression test. Use with care. This pref must be set back to
  # false as soon as specific test has completed.
-   name: preferences.force-disable.check.once.policy
    type: bool
    value: false
    mirror: always
#endif

#---------------------------------------------------------------------------
# Prefs starting with "print."
#---------------------------------------------------------------------------

# Variation fonts can't always be embedded in certain output formats
# such as PDF. To work around this, draw the variation fonts using
# paths instead of using font embedding.
- name: print.font-variations-as-paths
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether we always print silently (without a print dialog).
- name: print.always_print_silent
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Whether tab_modal print UI is enabled.
#
# The tab modal print dialog is currently only for early beta or nightly.
- name: print.tab_modal.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether the pages per sheet print setting is enabled.
- name: print.pages_per_sheet.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Print via the parent process. This is only used when e10s is enabled.
- name: print.print_via_parent
  type: RelaxedAtomicBool
  value: @IS_NOT_ANDROID@
  mirror: always

# Whether we allow the print progress dialog to show up.
- name: print.show_print_progress
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether we attempt to generate links in Save As PDF output.
- name: print.save_as_pdf.links.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# The default DPI for printing.
#
# For PDF-based output, DPI should ideally be irrelevant, but in fact it is not
# for multiple reasons:
#
#  * Layout code that tries to respect device pixels (e.g. for snapping glyph
#    positions and baselines, and especially for the "GDI Classic"
#    rendering-mode threshold for certain fonts).
#
#  * The limitations of the PDF format mean that we can't natively represent
#    certain effects, such as filters, in PDF output, so we need to rasterize
#    the parts of the document with these applied.
#
#  * Other rasterized things like images and such are also affected by DPI
#    (both in the output, and the images we select via srcset, for example).
#
# Therefore, using a high DPI is preferable. For now, we use 144dpi to match
# physical printer output on Windows, but higher (e.g. 300dpi) might be better
# if it does not lead to issues such as excessive memory use.
- name: print.default_dpi
  type: float
  value: 144.0f
  mirror: always

# Whether support for monochrome printing is enabled for CUPS.
- name: print.cups.monochrome.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "privacy."
#---------------------------------------------------------------------------

- name: privacy.file_unique_origin
  type: bool
  value: true
  mirror: always

- name: privacy.fuzzyfox.clockgrainus
  type: RelaxedAtomicUint32
  value: 100
  mirror: always

# Annotate trackers using the strict list. If set to false, the basic list will
# be used instead.
- name: privacy.annotate_channels.strict_list.enabled
  type: bool
  value: @IS_EARLY_BETA_OR_EARLIER@
  mirror: always

# First Party Isolation (double keying), disabled by default.
- name: privacy.firstparty.isolate
  type: RelaxedAtomicBool
  value: false
  mirror: always

# If false, two windows in the same domain with different first party domains
# (top level URLs) can access resources through window.opener. This pref is
# effective only when "privacy.firstparty.isolate" is true.
- name: privacy.firstparty.isolate.restrict_opener_access
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: privacy.firstparty.isolate.block_post_message
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: privacy.firstparty.isolate.use_site
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Enforce tracking protection in all modes.
- name: privacy.trackingprotection.enabled
  type: bool
  value: false
  mirror: always

# Enforce tracking protection in Private Browsing mode.
- name: privacy.trackingprotection.pbmode.enabled
  type: bool
  value: true
  mirror: always

# Annotate channels based on the tracking protection list in all modes
- name: privacy.trackingprotection.annotate_channels
  type: bool
  value: true
  mirror: always

# Block 3rd party fingerprinting resources.
- name: privacy.trackingprotection.fingerprinting.enabled
  type: bool
  value: false
  mirror: always

# Block 3rd party cryptomining resources.
- name: privacy.trackingprotection.cryptomining.enabled
  type: bool
  value: false
  mirror: always

# Block 3rd party socialtracking resources.
- name: privacy.trackingprotection.socialtracking.enabled
  type: bool
  value: false
  mirror: always

# Consider socialtracking annotation as trackers (see ETP).
- name: privacy.socialtracking.block_cookies.enabled
  type: bool
  value: true
  mirror: always

# Whether Origin Telemetry should be enabled.
# NOTE: if telemetry.origin_telemetry_test_mode.enabled is enabled, this pref
#       won't have any effect.
- name: privacy.trackingprotection.origin_telemetry.enabled
  type: RelaxedAtomicBool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

- name: privacy.trackingprotection.testing.report_blocked_node
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Whether to spoof user locale to English (used as part of Resist
# Fingerprinting).
# 0 - will prompt
# 1 - don't spoof
# 2 - spoof
- name: privacy.spoof_english
  type: RelaxedAtomicUint32
  value: 0
  mirror: always

# Send "do not track" HTTP header, disabled by default.
- name: privacy.donottrackheader.enabled
  type: bool
  value: false
  mirror: always

# Lower the priority of network loads for resources on the tracking protection
# list.  Note that this requires the
# privacy.trackingprotection.annotate_channels pref to be on in order to have
# any effect.
- name: privacy.trackingprotection.lower_network_priority
  type: bool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

# A subset of Resist Fingerprinting protections focused specifically on timers.
# This affects the Animation API, the performance APIs, Date.getTime,
# Event.timestamp, File.lastModified, audioContext.currentTime,
# canvas.captureStream.currentTime.
- name: privacy.reduceTimerPrecision
  type: RelaxedAtomicBool
  value: true
  mirror: always

# If privacy.reduceTimerPrecision is false, this pref controls whether or not
# to clamp all timers at a fixed 20 microsconds. It should always be enabled,
# and is only specified as a pref to enable an emergency disabling in the event
# of catastrophic failure.
- name: privacy.reduceTimerPrecision.unconditional
  type: RelaxedAtomicBool
  value: true
  mirror: always

# The resistFingerprinting variables are marked with 'Relaxed' memory ordering.
# We don't particurally care that threads have a percently consistent view of
# the values of these prefs. They are not expected to change often, and having
# an outdated view is not particurally harmful. They will eventually become
# consistent.
#
# The variables will, however, be read often (specifically .microseconds on
# each timer rounding) so performance is important.

- name: privacy.resistFingerprinting
  type: RelaxedAtomicBool
  value: false
  mirror: always

# We automatically decline canvas permission requests if they are not initiated
# from user input. Just in case that breaks something, we allow the user to
# revert this behavior with this obscure pref. We do not intend to support this
# long term. If you do set it, to work around some broken website, please file
# a bug with information so we can understand why it is needed.
- name: privacy.resistFingerprinting.autoDeclineNoUserInputCanvasPrompts
  type: bool
  value: true
  mirror: always

# Whether canvas extraction should result in random data. If false, canvas
# extraction results in all-white, opaque pixel data.
- name: privacy.resistFingerprinting.randomDataOnCanvasExtract
  type: RelaxedAtomicBool
  value: true
  mirror: always

# The log level for browser console messages logged in RFPHelper.jsm. Change to
# 'All' and restart to see the messages.
- name: privacy.resistFingerprinting.jsmloglevel
  type: String
  value: "Warn"
  mirror: never

# Enable jittering the clock one precision value forward.
- name: privacy.resistFingerprinting.reduceTimerPrecision.jitter
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Dynamically tune the resolution of the timer reduction for
# `privacy.reduceTimerPrecision` and `privacy.resistFingerprinting`.
- name: privacy.resistFingerprinting.reduceTimerPrecision.microseconds
  type: RelaxedAtomicUint32
  value: 1000
  mirror: always

- name: privacy.resistFingerprinting.target_video_res
  type: uint32_t
  value: 480
  mirror: always

# Bitfield for selectively disabling RFP
#   0 for no new behavior
#   1 for disabling RFP if it's a WebExtension
#   2 for disabling RFP if we are not in PBM
#   4 for disabling RFP on specific domains (see privacy.resistFingerprinting.exemptedDomains)
- name: privacy.resistFingerprinting.testGranularityMask
  type: RelaxedAtomicUint32
  value: 0
  mirror: always

# Anti-tracking permission expiration.
- name: privacy.restrict3rdpartystorage.expiration
  type: uint32_t
  value: 2592000   # 30 days (in seconds)
  mirror: always

# Report Anti-tracking warnings to console lazily
- name: privacy.restrict3rdpartystorage.console.lazy
  type: bool
  value: true
  mirror: always

# Enable the heuristic to allow storage access for windows opened using window.open() after user interaction
- name: privacy.restrict3rdpartystorage.heuristic.opened_window_after_interaction
  type: bool
  value: true
  mirror: always

# Enable the heuristic to allow storage access for windows opened using window.open()
- name: privacy.restrict3rdpartystorage.heuristic.window_open
  type: bool
  value: true
  mirror: always

# Enable the heuristic to allow storage access for windows opened using window.open()
- name: privacy.restrict3rdpartystorage.heuristic.redirect
  type: bool
  value: true
  mirror: always

# Anti-tracking permission expiration.
- name: privacy.restrict3rdpartystorage.expiration_redirect
  type: uint32_t
  value: 900    # 15 minutes
  mirror: always

# Anti-tracking user-interaction expiration.
- name: privacy.userInteraction.expiration
  type: uint32_t
  value: 3888000   # 45 days (in seconds)
  mirror: always

# Anti-tracking user-interaction document interval.
- name: privacy.userInteraction.document.interval
  type: uint32_t
  value: 1800   # 30 minutes (in seconds)
  mirror: always

# Enable Anti-tracking testing. When it enables, it will notify the observers
# when user-interaction permission or storage access permission is added. This
# is for testing only.
- name: privacy.antitracking.testing
  type: bool
  value: false
  mirror: always

# Enable the heuristic to allow storage access for recent visited pages
- name: privacy.restrict3rdpartystorage.heuristic.recently_visited
  type: bool
  value: true
  mirror: always

# Valid time gap since last visit
- name: privacy.restrict3rdpartystorage.heuristic.recently_visited_time
  type: uint32_t
  value: 600    # 10 minutes
  mirror: always

# Recent visited pages redirection permission expiration.
- name: privacy.restrict3rdpartystorage.expiration_visited
  type: uint32_t
  value: 2592000   # 30 days (in seconds)
  mirror: always

# Maximum client-side cookie life-time cap. Measured in seconds, set to 0 to
# disable.
- name: privacy.documentCookies.maxage
  type: uint32_t
  value: 0
  mirror: always

- name: privacy.storagePrincipal.enabledForTrackers
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: privacy.window.maxInnerWidth
  type: int32_t
  value: 1000
  mirror: always

- name: privacy.window.maxInnerHeight
  type: int32_t
  value: 1000
  mirror: always

- name: privacy.sanitize.sanitizeOnShutdown
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: privacy.clearOnShutdown.cache
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: privacy.dynamic_firstparty.limitForeign
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: privacy.dynamic_firstparty.use_site
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: privacy.partition.network_state
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: privacy.partition.bloburl_per_agent_cluster
  type: RelaxedAtomicBool
  value: @IS_NIGHTLY_BUILD@
  mirror: always

- name: privacy.window.name.update.enabled
  type: bool
  value: true
  mirror: always

# By default, the network state isolation is not active when there is a proxy
# setting. This pref forces the network isolation even in these scenarios.
- name: privacy.partition.network_state.connection_with_proxy
  type: bool
  value: false
  mirror: always

# The global switch to control the URL query sting stripping which strips query
# parameters from loading URIs to prevent bounce (redirect) tracking.
- name: privacy.query_stripping.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# The list which contains query parameters that are needed to be stripped from
# URIs. The query parameters are separated by a space.
- name: privacy.query_stripping.strip_list
  type: String
  value: ""
  mirror: never

# This controls if we will do the query string stripping for redirects.
- name: privacy.query_stripping.redirect
  type: bool
  value: true
  mirror: always

# the list which contains sites where should exempt from query stripping
- name: privacy.query_stripping.allow_list
  type: String
  value: ""
  mirror: never

#---------------------------------------------------------------------------
# Prefs starting with "prompts."
#---------------------------------------------------------------------------

# Prompt modal type prefs
# See nsIPromptService::MODAL_TYPE fields for possible values.

# Insecure form submit warning.
- name: prompts.modalType.insecureFormSubmit
  type: int32_t
  value: 2
  mirror: always

# nsHttpChannelAuthProvider#ConfirmAuth anti-phishing prompts.
- name: prompts.modalType.confirmAuth
  type: int32_t
  value: 2
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "security."
#---------------------------------------------------------------------------

# Mochitests that need to load resource:// URIs not declared content-accessible
# in manifests should set this pref.
- name: security.all_resource_uri_content_accessible
  type: bool
  value: false
  mirror: always

- name: security.bad_cert_domain_error.url_fix_enabled
  type: bool
  value: true
  mirror: always

- name: security.csp.enable
  type: bool
  value: true
  mirror: always

- name: security.csp.reporting.script-sample.max-length
  type: int32_t
  value: 40
  mirror: always

- name: security.csp.truncate_blocked_uri_for_frame_navigations
  type: bool
  value: true
  mirror: always

# If true, all toplevel data: URI navigations will be blocked.
# Please note that manually entering a data: URI in the
# URL-Bar will not be blocked when flipping this pref.
- name: security.data_uri.block_toplevel_data_uri_navigations
  type: bool
  value: true
  mirror: always

# Whether window A is allowed to navigate cross-origin window B (that is not
# a descendant frame of A) to a URI that loads externally.
- name: security.allow_disjointed_external_uri_loads
  type: bool
  value: false
  mirror: always

# Allowed by default so it doesn't affect Thunderbird/SeaMonkey, but
# not allowed for Firefox Desktop in firefox.js
- name: security.allow_parent_unrestricted_js_loads
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Allowed by default so it doesn't affect Thunderbird/SeaMonkey, but
# not allowed for Firefox Desktop in firefox.js
- name: security.allow_eval_with_system_principal
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Allowed by default so it doesn't affect Thunderbird/SeaMonkey, but
# not allowed for Firefox Desktop in firefox.js
- name: security.allow_eval_in_parent_process
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Disallowed by default, ensure not disallowed content is loaded in the parent
# process.
- name: security.allow_unsafe_parent_loads
  type: bool
  value: false
  mirror: always

# Pref to block mixed scripts (fonts, plugin content, scripts, stylesheets,
# iframes, websockets, XHR).
- name: security.mixed_content.block_active_content
  type: bool
  value: @IS_ANDROID@
  mirror: always

# Pref to block sub requests that happen within an object.
- name: security.mixed_content.block_object_subrequest
  type: bool
  value: false
  mirror: always

# Pref for mixed display content blocking (images, audio, video).
- name: security.mixed_content.block_display_content
  type: bool
  value: false
  mirror: always

# Pref for mixed display content upgrading (images, audio, video).
- name: security.mixed_content.upgrade_display_content
  type: bool
  value: false
  mirror: always

# Whether strict file origin policy is in effect. "False" is traditional.
- name: security.fileuri.strict_origin_policy
  type: RelaxedAtomicBool
  value: true
  mirror: always


# The level to which we sandbox the content process. firefox.js sets the
# default to different values on a per-OS basis, and has documentation
# on what the defaults are and what the numbers mean.
- name: security.sandbox.content.level
  type: int32_t
  value: 0
  mirror: always
  do_not_use_directly: true # Consumers should use SandboxSettings to ask.

- name: security.sandbox.socket.process.level
  type: int32_t
  value: 0
  mirror: always
  do_not_use_directly: true # Consumers should use SandboxSettings to ask.


# Whether win32k is disabled for content processes.
# true means win32k system calls are not permitted.
# (This cannot be put behind the XP_WIN and MOZ_SANDBOX guards because
#  "Nightly Experiments" has no way to filter options based on OS or other
#  CPP defines, and it fails if the pref doesn't exist)
- name: security.sandbox.content.win32k-disable
  type: RelaxedAtomicBool
  value: false
  mirror: always

#if defined(XP_WIN) && defined(MOZ_SANDBOX)
  # Note: win32k is currently _not_ disabled for GMP due to intermittent test
  # failures, where the GMP process fails very early. See bug 1449348.
-   name: security.sandbox.gmp.win32k-disable
    type: RelaxedAtomicBool
    value: false
    mirror: always

  # Whether win32k is disabled for socket processes.
  # true means win32k system calls are not permitted.
-   name: security.sandbox.socket.win32k-disable
    type: RelaxedAtomicBool
    value: true
    mirror: always

  # Whether CET Shadow Stacks Strict mode is enabled for the content processes.
-   name: security.sandbox.content.shadow-stacks-strict
    type: RelaxedAtomicBool
    value: false
    mirror: always

  # Whether CET Shadow Stacks Strict mode is enabled for the RDD processes.
-   name: security.sandbox.rdd.shadow-stacks-strict
    type: RelaxedAtomicBool
    value: false
    mirror: always

  # Whether CET Shadow Stacks Strict mode is enabled for the socket processes.
-   name: security.sandbox.socket.shadow-stacks-strict
    type: RelaxedAtomicBool
    value: false
    mirror: always

  # Whether CET Shadow Stacks Strict mode is enabled for the GPU processes.
-   name: security.sandbox.gpu.shadow-stacks-strict
    type: RelaxedAtomicBool
    value: false
    mirror: always

  # Whether CET Shadow Stacks Strict mode is enabled for the GMP processes.
-   name: security.sandbox.gmp.shadow-stacks-strict
    type: RelaxedAtomicBool
    value: false
    mirror: always

  # This controls the depth of stack trace that is logged when Windows sandbox
  # logging is turned on. This is only currently available for the content
  # process because the only other sandbox (for GMP) has too strict a policy to
  # allow stack tracing. This does not require a restart to take effect.
-   name: security.sandbox.windows.log.stackTraceDepth
    type: RelaxedAtomicUint32
    value: 0
    mirror: always
#endif

#if defined(XP_LINUX) && defined(MOZ_SANDBOX)
  # Run content processes in headless mode and disallow connections to
  # the X server.  Experimental; breaks WebGL and Flash, and requires
  # `widget.non-native-theme.enabled` and `widget.remote-look-and-feel`.
  # Changing it requires a restart because sandbox policy information dependent
  # on it is cached.  See bug 1640345 for details.
- name: security.sandbox.content.headless
  type: bool
  value: false
  mirror: once
#endif

# Pref to show warning when submitting from secure to insecure.
- name: security.warn_submit_secure_to_insecure
  type: bool
  value: true
  mirror: always

# Hardware Origin-bound Second Factor Support
- name: security.webauth.webauthn
  type: bool
  value: true
  mirror: always

# Navigate-to CSP 3 directive
- name: security.csp.enableNavigateTo
  type: bool
  value: false
  mirror: always

# No way to enable on Android, Bug 1552602
- name: security.webauth.u2f
  type: bool
  value: @IS_NOT_ANDROID@
  mirror: always

# Block Worker/SharedWorker scripts with wrong MIME type.
- name: security.block_Worker_with_wrong_mime
  type: bool
  value: true
  mirror: always

# Cancel outgoing requests from SystemPrincipal
- name: security.cancel_non_local_loads_triggered_by_systemprincipal
  type: bool
  value: false
  mirror: always

# Disable preloaded static key pins by default.
- name: security.cert_pinning.enforcement_level
  type: ReleaseAcquireAtomicUint32
  value: 0
  mirror: always
  do_not_use_directly: true

#---------------------------------------------------------------------------
# Prefs starting with "signon."
#---------------------------------------------------------------------------
- name: signon.usernameOnlyForm.enabled
  type: bool
  value: @IS_EARLY_BETA_OR_EARLIER@
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "slider."
#---------------------------------------------------------------------------

# Scrollbar snapping region.
# - 0: off
# - 1 and higher: slider thickness multiple
- name: slider.snapMultiplier
  type: int32_t
#ifdef XP_WIN
  value: 6
#else
  value: 0
#endif
  mirror: once

#---------------------------------------------------------------------------
# Prefs starting with "storage."
#---------------------------------------------------------------------------

# Whether to use a non-exclusive VFS.
# By default we use the unix-excl VFS, for the following reasons:
# 1. It improves compatibility with NFS shares, whose implementation
#    is incompatible with SQLite's locking requirements (reliable fcntl), and
#    in particular with WAL journaling.
#    Bug 433129 attempted to automatically identify such file-systems,
#    but a reliable way was not found and the fallback locking is slower than
#    POSIX locking, so we do not want to do it by default.
# 2. It allows wal mode to avoid the memory mapped -shm file, reducing the
#    likelihood of SIGBUS failures when disk space is exhausted.
# 3. It provides some protection from third party database tampering while a
#    connection is open.
# Note there's no win32-excl VFS, so this has no effect on Windows.
- name: storage.sqlite.exclusiveLock.enabled
  type: RelaxedAtomicBool
  value: @IS_NOT_ANDROID@
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "svg."
#---------------------------------------------------------------------------

# This pref controls whether the 'context-fill' and 'context-stroke' keywords
# can be used in SVG-as-an-image in the content processes to use the fill/
# stroke specified on the element that embeds the image. (These keywords are
# always enabled in the chrome process, regardless of this pref.) Also, these
# keywords are currently not part of any spec, which is partly why we disable
# them for web content.
- name: svg.context-properties.content.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Enables the 'context-fill' and 'context-stroke' keywords for particular
# domains. We expect this list to be Mozilla-controlled properties, since the
# 'context-*' keywords are not part of any spec. We expect to remove this
# preference and the 'context-` keyword support entirely in the
# not-too-distant future when a standardized alternative ships. This preference
# is _not_ for allowing web content to use these keywords. For performance
# reasons, the list of domains in this preference should remain short in
# length.
- name: svg.context-properties.content.allowed-domains
  type: String
  value: ""
  mirror: never

# Enable the use of display-lists for SVG hit-testing.
- name: svg.display-lists.hit-testing.enabled
  type: bool
  value: true
  mirror: always

# Enable the use of display-lists for SVG painting.
- name: svg.display-lists.painting.enabled
  type: bool
  value: true
  mirror: always

# Is support for the new getBBox method from SVG 2 enabled?
# See https://svgwg.org/svg2-draft/single-page.html#types-SVGBoundingBoxOptions
- name: svg.new-getBBox.enabled
  type: bool
  value: false
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "telemetry."
#---------------------------------------------------------------------------

# Enable origin telemetry test mode or not
# NOTE: turning this on will override the
#       privacy.trackingprotection.origin_telemetry.enabled pref.
- name: telemetry.origin_telemetry_test_mode.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: telemetry.number_of_site_origin.min_interval
  type: uint32_t
  value: 300000
  mirror: always

- name: telemetry.fog.test.localhost_port
  type: RelaxedAtomicInt32
  value: 0
  mirror: always
  rust: true

- name: telemetry.fog.test.activity_limit
  type: RelaxedAtomicUint32
  value: 120
  mirror: always
  rust: true

- name: telemetry.fog.test.inactivity_limit
  type: RelaxedAtomicUint32
  value: 1200
  mirror: always
  rust: true

#---------------------------------------------------------------------------
# Prefs starting with "test."
#---------------------------------------------------------------------------

- name: test.events.async.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: test.mousescroll
  type: RelaxedAtomicBool
  value: false
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "thread."
#---------------------------------------------------------------------------

- name: threads.medium_high_event_queue.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# If control tasks aren't enabled, they get medium high priority.
- name: threads.control_event_queue.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "timer."
#---------------------------------------------------------------------------

# Since our timestamp on macOS does not increment while the system is asleep, we
# should ignore sleep/wake notifications to make timer thread process timers.
- name: timer.ignore_sleep_wake_notifications
  type: RelaxedAtomicBool
#ifdef XP_MACOSX
  value: true
#else
  value: false
#endif
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "toolkit."
#---------------------------------------------------------------------------

# Returns true if BHR is disabled.
- name: toolkit.content-background-hang-monitor.disabled
  type: bool
  value: false
  mirror: always

- name: toolkit.scrollbox.horizontalScrollDistance
  type: RelaxedAtomicInt32
  value: 5
  mirror: always

- name: toolkit.scrollbox.verticalScrollDistance
  type: RelaxedAtomicInt32
  value: 3
  mirror: always

# The lateWriteChecksStage and fastShutdownStage below represent the stage
# of shutdown after which we (for lateWriteChecksStage) crash / gather
# telemetry data on file writes, or (for fastShutdownStage) we call _exit(0).
# Higher values are earlier during shutdown, and the full enumeration can
# be found in AppShutdown.h in the AppShutdownPhase enum.
- name: toolkit.shutdown.lateWriteChecksStage
  type: int32_t
#ifdef MOZ_CODE_COVERAGE
  value: 0
#else
  value: 3
#endif
  mirror: always

# See the comment above toolkit.shutdown.lateWriteChecksStage. A higher value
# for this pref means we call _exit(0) earlier during shutdown.
- name: toolkit.shutdown.fastShutdownStage
  type: int32_t
#if !defined(DEBUG) && !defined(MOZ_ASAN) && !defined(MOZ_TSAN) && !defined(MOZ_CODE_COVERAGE) && !defined(MOZ_VALGRIND) && !defined(MOZ_PROFILE_GENERATE) && !defined(JS_STRUCTURED_SPEW)
  value: 1
#else
  value: 0
#endif
  mirror: always

# Sending each remote accumulation immediately places undue strain on the IPC
# subsystem. Batch the remote accumulations for a period of time before sending
# them all at once. This value was chosen as a balance between data timeliness
# and performance (see bug 1218576).
- name: toolkit.telemetry.ipcBatchTimeout
  type: uint32_t
  value: 2000
  mirror: always

- name: toolkit.telemetry.geckoview.batchDurationMS
  type: RelaxedAtomicUint32
  value: 5000
  mirror: always

- name: toolkit.telemetry.geckoview.maxBatchStalenessMS
  type: RelaxedAtomicUint32
  value: 60000
  mirror: always

- name: toolkit.telemetry.geckoview.streaming
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: toolkit.telemetry.testing.overrideProductsCheck
  type: RelaxedAtomicBool
  value: false
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "ui."
#---------------------------------------------------------------------------

- name: ui.key.generalAccessKey
  type: int32_t
  value: -1
  mirror: always

# Only used if generalAccessKey is -1.
- name: ui.key.chromeAccess
  type: int32_t
#ifdef XP_MACOSX
  # 0 = disabled, 1 = Shift, 2 = Ctrl, 4 = Alt, 3 =  ctrl+shift, 8 = Meta
  value: 2
#else
  # 0 = disabled, 1 = Shift, 2 = Ctrl, 4 = Alt, 5 =  Alt+Shift,
  # 8 = Meta, 16 = Win
  value: 4
#endif
  mirror: always

# Only used if generalAccessKey is -1.
- name: ui.key.contentAccess
  type: int32_t
#ifdef XP_MACOSX
  # 0 = disabled, 1 = Shift, 2 = Ctrl, 4 = Alt, 3 = ctrl+shift, 8 = Meta
  value: 6
#else
  # 0 = disabled, 1 = Shift, 2 = Ctrl, 4 = Alt, 5 =  Alt+Shift,
  # 8 = Meta, 16 = Win
  value: 5
#endif
  mirror: always

# Does the access key by itself focus the menu bar?
- name: ui.key.menuAccessKeyFocuses
  type: bool
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
  # On Windows and Linux, we now default to showing the menu bar only when alt
  # is pressed.
  value: true
#else
  value: false
#endif
  mirror: always

# Duration of timeout of incremental search in menus (ms).  0 means infinite.
- name: ui.menu.incremental_search.timeout
  type: uint32_t
  value: 1000
  mirror: always

# If true, all popups won't hide automatically on blur
- name: ui.popup.disable_autohide
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Negate scroll, true will make the mouse scroll wheel move the screen the
# same direction as with most desktops or laptops.
- name: ui.scrolling.negate_wheel_scroll
  type: RelaxedAtomicBool
  value: @IS_ANDROID@
  mirror: always

# If the user puts a finger down on an element and we think the user might be
# executing a pan gesture, how long do we wait before tentatively deciding the
# gesture is actually a tap and activating the target element?
- name: ui.touch_activation.delay_ms
  type: int32_t
  value: 100
  mirror: always

# If the user has clicked an element, how long do we keep the :active state
# before it is cleared by the mouse sequences fired after a
# touchstart/touchend.
- name: ui.touch_activation.duration_ms
  type: int32_t
  value: 10
  mirror: always

# Prevent system colors from being exposed to CSS or canvas.
- name: ui.use_standins_for_native_colors
  type: RelaxedAtomicBool
  value: false
  mirror: always

# Disable page loading activity cursor by default.
- name: ui.use_activity_cursor
  type: bool
  value: false
  mirror: always

# Whether context menus should only appear on mouseup instead of mousedown,
# on OSes where they normally appear on mousedown (macOS, *nix).
# Note: ignored on Windows (context menus always use mouseup).
- name: ui.context_menus.after_mouseup
  type: bool
  value: false
  mirror: always

# Whether click-hold context menus are enabled.
- name: ui.click_hold_context_menus
  type: RelaxedAtomicBool
  value: false
  mirror: always

# How long to wait for a drag gesture before displaying click-hold context menu,
# in milliseconds.
- name: ui.click_hold_context_menus.delay
  type: RelaxedAtomicInt32
  value: 500
  mirror: always

# When enabled, the touch.radius and mouse.radius prefs allow events to be
# dispatched to nearby elements that are sensitive to the event. See
# PositionedEventTargeting.cpp. The 'mm' prefs define a rectangle around the
# nominal event target point within which we will search for suitable elements.
# 'visitedWeight' is a percentage weight; a value > 100 makes a visited link be
# treated as further away from the event target than it really is, while a
# value < 100 makes a visited link be treated as closer to the event target
# than it really is.

- name: ui.touch.radius.enabled
  type: bool
  value: @IS_ANDROID@
  mirror: always

- name: ui.touch.radius.topmm
  type: uint32_t
#ifdef ANDROID
  value: 5
#else
  value: 12
#endif
  mirror: always

- name: ui.touch.radius.rightmm
  type: uint32_t
#ifdef ANDROID
  value: 3
#else
  value: 8
#endif
  mirror: always

- name: ui.touch.radius.bottommm
  type: uint32_t
#ifdef ANDROID
  value: 2
#else
  value: 4
#endif
  mirror: always

- name: ui.touch.radius.leftmm
  type: uint32_t
#ifdef ANDROID
  value: 3
#else
  value: 8
#endif
  mirror: always

- name: ui.touch.radius.visitedWeight
  type: uint32_t
  value: 120
  mirror: always

- name: ui.mouse.radius.enabled
  type: bool
  value: @IS_ANDROID@
  mirror: always

- name: ui.mouse.radius.topmm
  type: uint32_t
#ifdef ANDROID
  value: 5
#else
  value: 12
#endif
  mirror: always

- name: ui.mouse.radius.rightmm
  type: uint32_t
#ifdef ANDROID
  value: 3
#else
  value: 8
#endif
  mirror: always

- name: ui.mouse.radius.bottommm
  type: uint32_t
#ifdef ANDROID
  value: 2
#else
  value: 4
#endif
  mirror: always

- name: ui.mouse.radius.leftmm
  type: uint32_t
#ifdef ANDROID
  value: 3
#else
  value: 8
#endif
  mirror: always

- name: ui.mouse.radius.visitedWeight
  type: uint32_t
  value: 120
  mirror: always

- name: ui.mouse.radius.reposition
  type: bool
  value: @IS_ANDROID@
  mirror: always

# When true, the ui.mouse.radius.* prefs will only affect simulated mouse
# events generated by touch input. When false, the prefs will be used for all
# mouse events.
- name: ui.mouse.radius.inputSource.touchOnly
  type: bool
  value: true
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "urlclassifier."
#---------------------------------------------------------------------------

# Update server response timeout for Safe Browsing.
- name: urlclassifier.update.response_timeout_ms
  type: uint32_t
  value: 30000
  mirror: always

# Download update timeout for Safe Browsing.
- name: urlclassifier.update.timeout_ms
  type: uint32_t
  value: 90000
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "view_source."
#---------------------------------------------------------------------------

- name: view_source.editor.external
  type: bool
  value: false
  mirror: always

- name: view_source.wrap_long_lines
  type: bool
  value: @IS_ANDROID@
  mirror: always

- name: view_source.syntax_highlight
  type: bool
  value: true
  mirror: always

- name: view_source.tab_size
  type: int32_t
  value: 4
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "webgl." (for pref access from Worker threads)
#---------------------------------------------------------------------------

- name: webgl.1.allow-core-profiles
  type: RelaxedAtomicBool
#ifdef XP_MACOSX
  value: true
#else
  value: false
#endif
  mirror: always

- name: webgl.all-angle-options
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: webgl.angle.force-d3d11
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: webgl.angle.try-d3d11
  type: RelaxedAtomicBool
#ifdef XP_WIN
  value: true
#else
  value: false
#endif
  mirror: always

- name: webgl.angle.force-warp
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: webgl.can-lose-context-in-foreground
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: webgl.cgl.multithreaded
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: webgl.debug.incomplete-tex-color
  type: RelaxedAtomicUint32
  value: 0
  mirror: always

- name: webgl.default-antialias
  type: RelaxedAtomicBool
  value: @IS_NOT_ANDROID@
  mirror: always

- name: webgl.default-no-alpha
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: webgl.disable-angle
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: webgl.disable-wgl
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: webgl.dxgl.enabled
  type: RelaxedAtomicBool
#ifdef XP_WIN
  value: true
#else
  value: false
#endif
  mirror: always

- name: webgl.dxgl.needs-finish
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: webgl.disable-fail-if-major-performance-caveat
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: webgl.disable-DOM-blit-uploads
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: webgl.disabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: webgl.enable-debug-renderer-info
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: webgl.enable-draft-extensions
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: webgl.enable-privileged-extensions
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: webgl.enable-surface-texture
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: webgl.enable-ahardwarebuffer
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: webgl.enable-webgl2
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: webgl.force-enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: webgl.force-layers-readback
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: webgl.force-index-validation
  type: RelaxedAtomicInt32
  value: 0
  mirror: always

- name: webgl.lose-context-on-memory-pressure
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: webgl.max-contexts
  type: RelaxedAtomicUint32
  value: 1000
  mirror: always

- name: webgl.max-contexts-per-principal
  type: RelaxedAtomicUint32
  value: 300
  mirror: always

- name: webgl.max-warnings-per-context
  type: RelaxedAtomicUint32
  value: 32
  mirror: always

- name: webgl.min_capability_mode
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: webgl.msaa-force
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: webgl.msaa-samples
  type: RelaxedAtomicUint32
  value: 4
  mirror: always

- name: webgl.out-of-process
  type: RelaxedAtomicBool
#if defined(XP_MACOSX) || defined(XP_WIN)
  value: true
#else
  value: false
#endif
  mirror: always

- name: webgl.out-of-process.force
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: webgl.out-of-process.shmem-size
  type: RelaxedAtomicUint32
  value: 100000 # 100KB
  mirror: always

- name: webgl.power-preference-override
  type: RelaxedAtomicInt32
  value: 0
  mirror: always

- name: webgl.prefer-16bpp
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: webgl.allow-immediate-queries
  type: RelaxedAtomicBool
  value: false
  mirror: always

- name: webgl.allow-fb-invalidation
  type: RelaxedAtomicBool
  value: false
  mirror: always


- name: webgl.perf.max-warnings
  type: RelaxedAtomicInt32
  value: 0
  mirror: always

- name: webgl.perf.max-acceptable-fb-status-invals
  type: RelaxedAtomicInt32
  value: 0
  mirror: always

- name: webgl.perf.spew-frame-allocs
  type: RelaxedAtomicBool
  value: true
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "widget."
#---------------------------------------------------------------------------

# Global user preference for disabling native theme in content processes.
#
# NOTE(emilio): When changing this make sure to update the non_native_theme
# entry in python/mozbuild/mozbuild/mozinfo.py and test_fission_autostart.py
- name: widget.non-native-theme.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# The size in CSS pixels at full zoom of the minimum scrollbar width.
- name: widget.non-native-theme.scrollbar.size
  type: uint32_t
#if defined(MOZ_WIDGET_GTK)
  value: 12
#else
  value: 17
#endif
  mirror: always

# Whether the active thumb color should always use the themed colors, even if
# dark scrollbars are in use.
- name: widget.non-native-theme.scrollbar.active-always-themed
  type: bool
  value: true
  mirror: always

# Whether we use the Windows CSS scrollbar sizes, or the scrollbar sizes
# defined above.
- name: widget.non-native-theme.win.scrollbar.use-system-size
  type: bool
  value: true
  mirror: always

# The amount of space that the thumb should fill the scrollbar, from zero to
# one.
- name: widget.non-native-theme.gtk.scrollbar.thumb-size
  type: float
  value: 0.75
  mirror: always

# The minimum size of the scroll thumb, in the scrollbar direction.
- name: widget.non-native-theme.gtk.scrollbar.thumb-cross-size
  type: uint32_t
  value: 40
  mirror: always

# Whether the thumb should be rounded for the non-native scrollbars.
- name: widget.non-native-theme.gtk.scrollbar.round-thumb
  type: bool
  value: true
  mirror: always

# Whether buttons shouldn't be suppressed for non-native scrollbars.
- name: widget.non-native-theme.gtk.scrollbar.allow-buttons
  type: bool
  value: false
  mirror: always

# Whether we should use the default accent color or the theme-provided one.
#
# TODO(emilio): This should probably do the right thing in most other
# platforms, but stick to the standard colors on those.
- name: widget.non-native-theme.use-theme-accent
  type: bool
#if defined(MOZ_WIDGET_GTK) || defined(XP_MACOSX)
  value: true
#else
  value: false
#endif
  mirror: always

# Whether we should try to use WebRender to render widgets.
- name: widget.non-native-theme.webrender
  type: bool
#if defined(XP_MACOSX)
  # Disabled on macOS release / beta because of a suspected AMD driver bug (see
  # bug 1715452).
  value: @IS_NIGHTLY_BUILD@
#else
  value: true
#endif
  mirror: always

# Preference to disable dark scrollbar implementation.
# This is mainly for testing because dark scrollbars have to be semi-
# transparent, but many reftests expect scrollbars to look identical
# among different backgrounds.
# However, some users may want to disable this as well.
- name: widget.disable-dark-scrollbar
  type: bool
  value: false
  mirror: always

- name: widget.window-transforms.disabled
  type: RelaxedAtomicBool
  value: false
  mirror: always

#ifdef XP_MACOSX
- name: widget.macos.native-context-menus
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: widget.macos.enable-pre-bigsur-workaround-for-dark-mode-context-menus
  type: RelaxedAtomicBool
  value: true
  mirror: always

- name: widget.macos.support-dark-appearance
  type: RelaxedAtomicBool
  value: true
  mirror: always
#endif

# Whether to allow gtk dark themes in content.
- name: widget.content.allow-gtk-dark-theme
  type: bool
  value: false
  mirror: always

# Whether widget follows the firefox theme in order to choose a light / dark
# appearance.
- name: widget.gtk.follow-firefox-theme
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Whether we try to extract dark theme GTK colors.
#
# For now, needed for follow-firefox-theme. In the future will also be needed
# for the color-scheme CSS property / meta tag / etc.
- name: widget.gtk.alt-theme.dark
  type: bool
  value: true
  mirror: always

# Whether selection colors for the non-system theme get passed from the system
# GTK theme.
- name: widget.gtk.alt-theme.selection
  type: bool
  value: true
  mirror: always

# Whether form control accent colors for the non-system theme get passed from
# the system GTK theme.
- name: widget.gtk.alt-theme.accent
  type: bool
  value: true
  mirror: always

# Whether the scrollbar thumb active color from the non-system theme gets
# passed from the system GTK theme.
- name: widget.gtk.alt-theme.scrollbar_active
  type: bool
  value: true
  mirror: always

# Whether other scrollbar colors get passed from the real GTK theme.
#
# This is default false because light scrollbars usually match better websites,
# and we have automatic scrollbar darkening.
- name: widget.gtk.alt-theme.scrollbar
  type: bool
  value: false
  mirror: always

# Whether to use gtk high contrast themes to disable content styling like on
# windows high contrast mode.
- name: widget.content.gtk-high-contrast.enabled
  type: bool
  value: true
  mirror: always

# Whether to pause the compositor when a native window is minimized.
- name: widget.pause-compositor-when-minimized
  type: bool
  value: true
  mirror: always

#ifdef MOZ_WAYLAND
# Whether to override the DMABuf blocklist.
- name: widget.dmabuf.force-enabled
  type: bool
  value: false
  mirror: once

#ifdef NIGHTLY_BUILD
# Keep those pref hidden on non-nightly builds to avoid people accidentally
# turning it on.

# Use DMABuf for content textures.
# For testing purposes only.
- name: widget.dmabuf-textures.enabled
  type: RelaxedAtomicBool
  value: false
  mirror: always
#endif

# Smooth rendering mode for Wayland basic compositor.
# 0 - direct draw
# 1 - basic caching
# 2 - all caching
- name: widget.wayland-smooth-rendering
  type: RelaxedAtomicUint32
  value: 1
  mirror: always

# Use DMABuf backend for WebGL.
- name: widget.dmabuf-webgl.enabled
  type: RelaxedAtomicBool
  value: true
  mirror: always

# Force fractional scaling using wp_viewporter. Valid values: 0.5 - 8
- name: widget.wayland.fractional_buffer_scale
  type: float
  value: 0.0f
  mirror: once

- name: widget.wayland.multi-buffer-software-backend.enabled
  type: bool
  value: false
  mirror: once

# Use opaque region for MozContainer wl_surface
- name: widget.wayland.opaque-region.enabled
  type: bool
  value: true
  mirror: once

# Use frame callback based vsync
- name: widget.wayland.vsync.enabled
  type: bool
  value: true
  mirror: once
#endif

#---------------------------------------------------------------------------
# Prefs starting with "xul."
#---------------------------------------------------------------------------

# Pref to control whether arrow-panel animations are enabled or not.
# Transitions are currently disabled on Linux due to rendering issues on
# certain configurations.
- name: xul.panel-animations.enabled
  type: bool
#ifdef MOZ_WIDGET_GTK
  value: false
#else
  value: true
#endif
  mirror: always

#---------------------------------------------------------------------------
# Prefs starting with "zoom."
#---------------------------------------------------------------------------

- name: zoom.maxPercent
  type: uint32_t
#ifdef ANDROID
  value: 400
#else
  value: 500
#endif
  mirror: always

- name: zoom.minPercent
  type: uint32_t
#ifdef ANDROID
  value: 20
#else
  value: 30
#endif
  mirror: always

#---------------------------------------------------------------------------
# End of prefs
#---------------------------------------------------------------------------