manifest.json

{
    "manifest_version": 3,
    "name": "YouTube Quality Setter",
    "version": "1.0",
    "description": "Enhance your YouTube viewing experience by setting your preferred video quality. Automatically choose the highest available quality or select a specific resolution with ease.",
    "permissions": ["tabs", "scripting", "storage"],
    "host_permissions": [
        "https://www.youtube.com/*"
      ],
    "background": {
      "service_worker": "background.js"
    },
    "content_scripts": [
      {
        "matches": ["*://*.youtube.com/watch*"],
        "js": ["content.js"],
        "run_at": "document_start"
      }
    ],
    "action": {
      "default_popup": "popup.html"
    },
    "icons": {
        "16": "icons/icon16.png",
        "24": "icons/icon24.png",
        "32": "icons/icon32.png",
        "48": "icons/icon48.png",
        "128": "icons/icon128.png"
    }
  }