Examine source code of Auto Pin Media Tabs

{
  "manifest_version": 2,
  "name": "Auto Pin Media Tabs",
  "version": "1.10",
  "description": "Automatically pins any tab that starts playing audio or video.",
  "permissions": [
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "auto-pin-media@example.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}