Examine source code of Random VIN Generator

{
  "manifest_version": 2,
  "name": "Random VIN Generator",
  "description": "This extension is used to generate valid random and real VIN number for AUTO",
  "version": "1.1.1",
  "permissions": [
    "storage",
    "https://randomvin.com/getvin.php"
  ],
  "browser_action": {
    "default_icon": "images/icon-192x192.png",
    "default_title": "Random VIN Generator",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ],
    "persistent": false
  },
  "icons": {
    "16": "images/icon-16x16.png",
    "32": "images/icon-32x32.png",
    "192": "images/icon-192x192.png",
    "512": "images/icon-512x512.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c335c7f0-eedd-4825-bd2a-d5e27a27f91b}"
    }
  }
}