Examine source code of Advanced Email Search

{
  "manifest_version": 2,
  "name": "Advanced Email Search",
  "version": "1.0",
  "description": "Công cụ tìm kiếm email nâng cao từ trình duyệt Firefox.",
  "permissions": [
    "activeTab",
    "storage"
  ],
  "icons": {
    "48": "icons/icon.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Advanced Email Search"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{bedc8b1c-4933-4bb2-8c78-4f8c0fe4c6af}"
    }
  }
}