Examine source code of Anime installer

{
  "manifest_version": 2,
  "name": "JutSu аниме загрузчик",
  "version": "1.0",
  "description": "Скачивайте аниме серии с выбором качества",
  "permissions": [
    "activeTab",
    "downloads"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icon.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{12492fa8-e7f3-428b-a034-6ec69499b17c}"
    }
  }
}