Examine source code of BookDAV

{
  "manifest_version": 2,
  "name": "BookDAV",
  "description": "Synchronize browser bookmarks with a WebDAV server.",
  "version": "0.3.1",
  "browser_action": {
    "default_title": "BookDAV Sync",
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icons/icon-48.png",
      "96": "icons/icon-96.png",
      "128": "icons/icon-128.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "permissions": [
    "alarms",
    "bookmarks",
    "storage",
    "notifications"
  ],
  "optional_permissions": [
    "<all_urls>"
  ],
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{2b5181d3-5e5f-4a6c-9985-2991afb7f766}",
      "strict_min_version": "102.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}