Examine source code of Определение CMS - iTrack

{
  "manifest_version": 2,
  "name": "Определение CMS - iTrack",
  "description": "Расширение для опредения CMS сайта",
  "version": "1.0.7resigned1",
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "16.png",
    "48": "48.png",
    "128": "128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "contextMenus",
    "https://itrack.ru/*",
    "tabs"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{c66e347e-f064-4fd5-8c06-6a656b9e4ccc}"
    }
  }
}