Examine source code of Random Password Generator

{
  "manifest_version": 2,
  "name": "Ifaker",
  "version": "1.0",
  "description": "Generate strong random secure passwords for free.",
  "homepage_url": "https://www.ifaker.net/",
  "icons": {
    "32": "icons/32.png",
    "48": "icons/48.png",
    "96": "icons/96.png"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_icon": "icons/32.png",
    "default_title": "Random Strong Password Generator",
    "default_popup": "popup/popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{39b4944a-1573-4387-8558-6d82dc8f0bf4}"
    }
  }
}