Examine source code of Save as URL

{
  "manifest_version": 3,
  "name": "Save as URL",
  "version": "1.0",
  "developer": {
    "name": "Alexander Ezharjan"
  },
  "description": "Instantly saves the current webpage as a .url shortcut file.",
  "permissions": [
    "activeTab",
    "scripting"
  ],
  "icons": {
    "128": "icon.png"
  },
  "action": {
    "default_title": "Save this site as *.URL file",
    "default_icon": {
      "128": "icon.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "save-as-url@alexander-ezharjan",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {}
  }
}