Examine source code of Auto Refresh

{
  "manifest_version": 3,
  "name": "Auto Refresh",
  "description": "定时刷新指定标签页，并在页面疑似空白或加载异常时自动恢复。",
  "version": "0.1.0",
  "author": "chulingera2025 <chulingera2025@gamil.com>",
  "action": {
    "default_popup": "popup.html",
    "default_title": "FireFox Auto Refresh"
  },
  "background": {
    "scripts": [
      "src/background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "firefox-auto-refresh@example.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "alarms",
    "storage",
    "tabs"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "src/content.js"
      ],
      "run_at": "document_idle"
    }
  ]
}