Examine source code of Cashback Buddy

{
  "manifest_version": 2,
  "name": "Cashback Buddy",
  "version": "1.0",
  "description": "VERPASSE NIEMALS CASHBACK - Mit unserer Browser-Erweiterung noch einfacher Cashback sammeln!",
  "icons": {
    "48": "icon.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png"
  },
  "permissions": [
    "storage",
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{c51f6a71-02f9-4d02-af20-5b153c3d27b9}"
    }
  }
}