YouTube Fullscreen Theater Mode Firefox

Examine source code of YouTube Fullscreen Theater Mode

Inspect and view changes in YouTube Fullscreen Theater Mode source codes across current and past versions
xHeader
Modify request and response headers. No ads, no malware.
Please login to examine the extension's source code.
manifest.json
{
  "manifest_version": 3,
  "name": "YouTube Fullscreen Theater Mode",
  "short_name": "YTFullTheatr",
  "description": "Makes YouTube theater mode fullscreen, using the entire height of the browser viewport for the video player.",
  "version": "1.0.0",
  "icons": {
    "128": "icon-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.youtube.com/*"
      ],
      "run_at": "document_end",
      "js": [
        "theater-mode.js",
        "chat.js",
        "page.js",
        "init.js"
      ],
      "css": [
        "theater-mode.css"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "youtube-simple-theater@gabrielerbetta.github.io"
    }
  }
}

Best YouTube Fullscreen Theater Mode Alternatives

Here are some Firefox add-ons that are similar to YouTube Fullscreen Theater Mode: