Examine source code of Fast Fullscreen YouTube

{
  "manifest_version": 2,
  "name": "Fast Fullscreen YouTube",
  "version": "1.0",
  "description": "Отключает анимации при переходе в полноэкранный режим на YouTube.",
  "content_scripts": [
    {
      "matches": [
        "*://www.youtube.com/*"
      ],
      "css": [
        "style.css"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{8353e9ae-7b2d-4dcf-879c-228af6d1c753}"
    }
  }
}