Examine source code of UDM Browser Extension

{
  "manifest_version": 3,
  "name": "UDM Browser Extension",
  "description": "连接 UDM 的浏览器扩展，支持任务查看、控制与后续下载接管。",
  "version": "1.0.3",
  "icons": {
    "16": "icons/appicon-16.png",
    "19": "icons/appicon-19.png",
    "24": "icons/appicon-24.png",
    "32": "icons/appicon-32.png",
    "38": "icons/appicon-38.png",
    "48": "icons/appicon-48.png",
    "64": "icons/appicon-64.png",
    "96": "icons/appicon-96.png",
    "128": "icons/appicon-128.png",
    "256": "icons/appicon-256.png"
  },
  "permissions": [
    "storage",
    "contextMenus",
    "downloads",
    "notifications"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self';"
  },
  "optional_permissions": [
    "cookies"
  ],
  "optional_host_permissions": [
    "http://*/*",
    "https://*/*"
  ],
  "host_permissions": [
    "http://127.0.0.1/*",
    "http://localhost/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "action": {
    "default_title": "UDM Browser Extension",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/appicon-16.png",
      "19": "icons/appicon-19.png",
      "24": "icons/appicon-24.png",
      "32": "icons/appicon-32.png",
      "38": "icons/appicon-38.png",
      "48": "icons/appicon-48.png"
    }
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "udm-browser-extension@dogfight360.com",
      "data_collection_permissions": {
        "required": [
          "websiteActivity",
          "websiteContent",
          "browsingActivity"
        ]
      }
    }
  }
}