Examine source code of Gorl

{
  "manifest_version": 2,
  "name": "gorl",
  "version": "1.1resigned1",
  "description": "gorl.",
  "icons": {
    "48": "icons/48.png",
    "96": "icons/96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "gorl.js"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{978d4c22-0665-4c86-a521-b92484454f44}"
    }
  }
}