Examine source code of Insta Ticket

{
  "manifest_version": 3,
  "name": "Railway Auto Ticket Booker",
  "version": "1.0.0",
  "description": "Book Now + Coach + Seats - All in milliseconds",
  "permissions": [
    "storage",
    "activeTab",
    "scripting",
    "notifications",
    "alarms"
  ],
  "host_permissions": [
    "https://eticket.railway.gov.bd/*"
  ],
  "icons": {
    "16": "icon.png",
    "32": "icon.png",
    "48": "icon.png",
    "128": "icon.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "Ultra-Fast Booker",
    "default_icon": {
      "16": "icon.png",
      "32": "icon.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "railwayautoticketbooker@yourdomain.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}