Examine source code of Sorola link shortener

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "__MSG_extensionName__",
  "version": "2.6",
  "description": "__MSG_extensionDescription__",
  "default_locale": "en",
  "icons": {
    "16": "lyhennin16.png",
    "48": "lyhennin48.png",
    "128": "lyhennin128.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "__MSG_actionTitle__",
    "default_icon": {
      "16": "lyhennin16.png",
      "48": "lyhennin48.png",
      "128": "lyhennin128.png"
    }
  },
  "permissions": [
    "activeTab"
  ],
  "host_permissions": [
    "https://api.sorola.fi/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "lyhennin@sorola.fi",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "browsingActivity"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}