Examine source code of Copy HTML

{
  "name": "CopyHTML",
  "description": "ToolBOX для облегчения работы",
  "version": "5.2.1",
  "manifest_version": 3,
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "action": {
    "default_popup": "popup.html"
  },
  "permissions": [
    "scripting",
    "activeTab",
    "storage"
  ],
  "incognito": "spanning",
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "CopyHTML@myExtension",
      "strict_min_version": "112.0"
    }
  }
}