Examine source code of Hide Twitch Extensions

{
  "name": "Hide Twitch Extensions",
  "version": "1.4resigned1",
  "description": "Just hide twitch extensions on Chrome and Firefox",
  "content_scripts": [
    {
      "matches": [
        "*://*.twitch.tv/*"
      ],
      "js": [
        "hide.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "permissions": [
    "tabs",
    "*://*.twitch.tv/*"
  ],
  "manifest_version": 2,
  "browser_specific_settings": {
    "gecko": {
      "id": "{e3ea3e79-59a9-4c21-9b20-96784a8c1f6b}"
    }
  }
}