YouTube in HD (720p, 1080p, 1440p, 2160p)

Watch YouTube in the full-HD quality or the highest available one

Premium users can view and search full source code, and see the source code differences between two versions.

manifest.json

{
  "name": "Auto High Quality for YouTube™",
  "description": "Automatically change YouTube video quality to HD resolution or the highest available one",
  "version": "0.4.9",
  "manifest_version": 3,
  "permissions": [
    "storage",
    "scripting"
  ],
  "host_permissions": [
    "*://www.youtube.com/*",
    "*://www.youtube-nocookie.com/*"
  ],
  "optional_host_permissions": [
    "*://*/*"
  ],
  "background": {
    "service_worker": "worker.js",
    "scripts": [
      "worker.js"
    ]
  },
  "homepage_url": "https://webextension.org/listing/youtube-hd.html",
  "action": {
    "default_popup": "/data/popup/index.html"
  },
  "icons": {
    "16": "/data/icons/16.png",
    "19": "/data/icons/19.png",
    "32": "/data/icons/32.png",
    "38": "/data/icons/38.png",
    "48": "/data/icons/48.png",
    "128": "/data/icons/128.png",
    "256": "/data/icons/256.png",
    "512": "/data/icons/512.png"
  },
  "commands": {
    "_execute_action": {}
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "jid0-RjdrEcWS3Ggt4xydeqVS8WQk1Lu@jetpack",
      "strict_min_version": "128.0"
    }
  }
}