Automatic 4K/HD for Youtube

manifest.json

{
  "manifest_version": 2,
  "name": "Automatic 4K/HD for Youtube",
  "version": "1.0.1",
  "description": "Extension that will allow you to select desired playback quality on Youtube. Save setting forever.",
  "icons": {
    "16": "media/icon16.png",
    "18": "media/icon48.png",
    "128": "media/icon128.png"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "all_frames": true,
      "js": [
        "js/youtubeContentScript.js"
      ],
      "matches": [
        "*://www.youtube.com/*"
      ],
      "run_at": "document_start"
    }
  ],
  "permissions": [
    "storage",
    "tabs",
    "notifications",
    "unlimitedStorage",
    "activeTab",
    "<all_urls>",
    "webNavigation",
    "management",
    "*://*/*",
    "contextMenus",
    "bookmarks",
    "idle",
    "topSites"
  ],
  "browser_action": {
    "default_popup": "browserAction.html"
  },
  "update_url": "https://edge.microsoft.com/extensionwebstorebase/v1/crx"
}