Examine source code of Time Tracker Web 2025

{
  "manifest_version": 3,
  "name": "Time Tracker",
  "version": "1.0",
  "description": "Đếm thời gian bạn sử dụng web trên Firefox.",
  "action": {
    "default_popup": "popup.html"
  },
  "icons": {
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "permissions": [
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "timetracker@yourname.com"
    }
  }
}