Examine source code of QR CoGenerator

{
  "manifest_version": 2,
  "name": "QR Code Generator",
  "version": "1.0",
  "description": "Generates a QR code for the current page URL. Version 1.0: Simple QR display using Google Charts API.",
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html",
    "default_title": "Generate QR Code"
  },
  "icons": {
    "128": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{54f4dbdf-08f7-4620-b337-b3ef4617e63f}"
    }
  }
}