Examine source code of Web Access Controller

{
  "manifest_version": 2,
  "name": "__MSG_app_name__",
  "version": "3.1",
  "description": "__MSG_app_ext_desc__",
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "{d3e2f0a1-1234-5678-9abc-def012345674}",
      "strict_min_version": "91.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "16": "assets/icon16.png",
    "48": "assets/icon48.png",
    "128": "assets/icon128.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "assets/icon16.png",
      "48": "assets/icon48.png"
    }
  },
  "background": {
    "scripts": [
      "core/storage.js",
      "core/background.js"
    ],
    "persistent": false
  },
  "permissions": [
    "webNavigation",
    "webRequest",
    "storage",
    "tabs",
    "<all_urls>"
  ]
}