Examine source code of Twitch player auto-reload

{
  "name": "Twitch player auto-reload",
  "version": "2.4.0",
  "description": "This extension detects video playback errors and auto refreshes the player.",
  "author": "Patrick Beal",
  "manifest_version": 2,
  "icons": {
    "16": "reloadIcon16.png",
    "32": "reloadIcon32.png",
    "48": "reloadIcon48.png",
    "128": "reloadIcon128.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_panel": "index.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.twitch.tv/*"
      ],
      "js": [
        "script.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{fc27c00e-f5d7-45d7-86d6-8929872219cf}"
    }
  }
}