Spotify YouTube Control

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Spotify YouTube Control",
  "version": "1.0.2",
  "description": "This extension automatically pauses Spotify when YouTube is playing and vice versa!",
  "background": {
    "service_worker": "background.js"
  },
  "icons": {
    "128": "icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.spotify.com/*"
      ],
      "js": [
        "spotify.js"
      ]
    },
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "js": [
        "youtube.js"
      ]
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "on/off"
  },
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "*://*.youtube.com/*",
    "*://*.spotify.com/*"
  ],
  "manifest_version": 3
}