Examine source code of Quick Link Saver Pro

{
  "manifest_version": 2,
  "name": "Quick Link Saver Pro",
  "version": "1.0.1",
  "description": "Speichert Links mit Kategorien und Sammlungen",
  "permissions": [
    "storage",
    "activeTab",
    "tabs",
    "cookies"
  ],
  "browser_action": {
    "default_title": "Quick Link Saver Pro",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/chick-16.png",
      "32": "icons/chick-32.png",
      "48": "icons/chick-48.png"
    }
  },
  "icons": {
    "16": "icons/chick-16.png",
    "32": "icons/chick-32.png",
    "48": "icons/chick-48.png"
  },
  "applications": {
    "gecko": {
      "id": "quick-link-saver-pro@example.com"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  }
}