Examine source code of CC Generator

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "CC Generator",
  "description": "Generates valid credit card numbers for development use.",
  "version": "1.2.2resigned1",
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon.png"
  },
  "options_ui": {
    "page": "options.html",
    "chrome_style": true
  },
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html",
    "default_title": "CC Generator"
  },
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{ba7c94d1-cdf7-46f2-89b5-ab6d58a4dc47}"
    }
  }
}