Examine source code of QZ Ticket Auto-Print

{
  "manifest_version": 2,
  "name": "QZ Ticket Auto-Print",
  "version": "1.0",
  "description": "Intercepta descargas de PDF y las envía a QZ Tray para imprimir tickets",
  "permissions": [
    "storage",
    "notifications",
    "webNavigation",
    "tabs",
    "webRequest",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "lib/qz-tray.js",
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "browser_action": {
    "default_title": "QZ Ticket Auto-Print",
    "default_icon": "icons/icon.svg"
  },
  "icons": {
    "48": "icons/icon.svg",
    "96": "icons/icon.svg"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "qz-ticket-autoprint@etecsa",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}