Examine source code of CEREFINE | New Tab

{
  "name": "CEREFINE | New Tab",
  "short_name": "Cerefine",
  "version": "2.2",
  "manifest_version": 2,
  "description": "A perfect 'New tab' extension for your browser.",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "128": "icons/128.png",
    "256": "icons/256.png"
  },
  "chrome_url_overrides": {
    "newtab": "src/browser_action/newtab.html"
  },
  "browser_action": {
    "default_icon": "icons/128.png"
  },
  "permissions": [
    "cookies",
    "*://*.cerefine.com/*"
  ],
  "background": {
    "persistent": true,
    "scripts": [
      "js/jquery.min.js",
      "src/bg/background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{74598c3d-99cb-4a11-bc78-9d222a399dde}"
    }
  }
}