Examine source code of Google Language Lock

{
  "manifest_version": 3,
  "name": "Google Language Lock",
  "version": "1.0.2",
  "browser_specific_settings": {
    "gecko": {
      "id": "{949c7aab-8f6c-4028-8773-09a38eaaec3a}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {}
  },
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "96": "icons/96.png",
    "128": "icons/128.png"
  },
  "permissions": [
    "storage",
    "webRequest",
    "webRequestBlocking"
  ],
  "host_permissions": [
    "*://*.google.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_popup": "popup.html"
  }
}