YouTube Tab Switch

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "YouTube Tab Switch",
  "description": "No matter how many YouTube video tabs are open, YouTube Tab Switch ensures that only one video is always playing",
  "version": "1.0",
  "icons": {
    "16": "img/icon16.png",
    "32": "img/icon32.png",
    "128": "img/icon128.png"
  },
  "browser_action": {
    "default_icon": "img/icon16.png",
    "default_popup": "popup.html",
    "default_title": "Youtube Tab Switch"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "js": [
        "js/content.js",
        "lib/jquery-3.4.1.min.js"
      ],
      "run_at": "document_end"
    }
  ],
  "permissions": [
    "tabs",
    "*://*.youtube.com/*",
    "storage"
  ]
}