Examine source code of Mivure

{
  "manifest_version": 3,
  "name": "Mivure Timer",
  "version": "0.2.4",
  "description": "Таймер работы по проектам Mivure",
  "browser_specific_settings": {
    "gecko": {
      "id": "mivure-timer@mivure.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "Mivure Timer",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "permissions": [
    "alarms",
    "storage"
  ],
  "host_permissions": [
    "http://localhost:3000/*",
    "https://mivure.com/*",
    "https://*.mivure.com/*"
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  }
}