Examine source code of Video Playback Enhancer

{
  "manifest_version": 2,
  "name": "Video Playback Enhancer",
  "version": "1.0",
  "description": "Manually set the playback speed and bitrate on streaming platforms like Netflix.",
  "permissions": [
    "activeTab",
    "tabs"
  ],
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html",
    "default_title": "Playback Enhancer"
  },
  "icons": {
    "48": "icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.netflix.com/*"
      ],
      "js": [
        "popup.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{4853892d-17cb-4cc5-bac3-30e51c1a398c}"
    }
  }
}