1[
2  {
3    "namespace": "manifest",
4    "types": [
5      {
6        "$extend": "WebExtensionManifest",
7        "properties": {
8          "chrome_url_overrides": {
9            "type": "object",
10            "optional": true,
11            "properties": {
12              "newtab": {
13                "$ref": "ExtensionURL",
14                "optional": true,
15                "preprocess": "localize"
16              },
17              "bookmarks": {
18                "unsupported": true,
19                "$ref": "ExtensionURL",
20                "optional": true,
21                "preprocess": "localize"
22              },
23              "history": {
24                "unsupported": true,
25                "$ref": "ExtensionURL",
26                "optional": true,
27                "preprocess": "localize"
28              }
29            }
30          }
31        }
32      }
33    ]
34  }
35]