Examine source code of Tab Limit manager

{
  "manifest_version": 3,
  "name": "Tab Limiter - Protocol Vital",
  "version": "1.1",
  "description": "Limits the number of tabs for system survival. Intervention required in case of overload.",
  "permissions": [
    "tabs",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icon.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "tablimiter@survival.mode",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}