Examine source code of GemQuery Favorites

{
  "manifest_version": 2,
  "name": "GemQuery Favorites",
  "version": "1.4",
  "description": "Easily mark and access your favorite pages on GemQuery. Boost productivity with quick shortcuts to your most-used resources",
  "icons": {
    "96": "icons/gem-query-96.png"
  },
  "background": {
    "scripts": [
      "popup/gemquery.js"
    ]
  },
  "permissions": [
    "contextMenus",
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{b96f277a-6e1f-4c39-94cb-3056199bd4f1}"
    }
  }
}