HotKey Music Controller: YouTube, Spotify

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "HotKey Music Controller: YouTube, Spotify",
  "short_name": "keyboard-media-hotkey-music-controller",
  "version": "0.0.5",
  "manifest_version": 2,
  "description": "Use keyboard media hotkeys to control YouTube, Youtube Music, Spotify, Tidal, Deezer and improve focus and increase productivity",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "permissions": [
    "tabs",
    "https://www.youtube.com/*",
    "https://music.youtube.com/*",
    "https://www.deezer.com/*",
    "https://open.spotify.com/*",
    "https://listen.tidal.com/*"
  ],
  "browser_action": {
    "default_icon": {
      "19": "icons/icon19.png",
      "38": "icons/icon38.png",
      "48": "icons/icon48.png"
    },
    "default_popup": "popup.html"
  },
  "commands": {
    "NextTrack": {
      "suggested_key": {
        "default": "MediaNextTrack"
      },
      "description": "MediaNextTrack"
    },
    "PreviousTrack": {
      "suggested_key": {
        "default": "MediaPrevTrack"
      },
      "description": "MediaPrevTrack"
    },
    "PlayPause": {
      "suggested_key": {
        "default": "MediaPlayPause"
      },
      "description": "MediaPlayPause"
    }
  },
  "background": {
    "scripts": [
      "inject.js"
    ],
    "persistent": true
  },
  "web_accessible_resources": []
}