Examine source code of Cookie Cleaner

{
  "manifest_version": 2,
  "name": "Cookie Cleaner",
  "version": "1.0.1",
  "description": "Быстрое удаление куки-файлов браузера. Одна кнопка — удалить куки текущей страницы, вторая — удалить все куки.",
  "developer": {
    "name": "Cookie Cleaner Dev",
    "url": "https://github.com/qwerokip-wq/cookie-cleaner"
  },
  "homepage_url": "https://github.com/qwerokip-wq/cookie-cleaner",
  "permissions": [
    "cookies",
    "activeTab",
    "<all_urls>"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{f245f77a-00b7-415f-a7ac-28ee24465c66}",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "browser_action": {
    "default_popup": "popup/popup.html",
    "default_title": "Cookie Cleaner",
    "default_icon": {
      "16": "icons/icon-16.png",
      "48": "icons/icon-48.png",
      "96": "icons/icon-96.png"
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  }
}