Examine source code of Tabi - Window Exporter

{
  "manifest_version": 3,
  "name": "Tabi - Window Exporter",
  "version": "1.0.0",
  "description": "Export all tab URLs from the current window to a text file",
  "permissions": [
    "tabs",
    "downloads",
    "contextMenus"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "tabi-window-exporter@example.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_title": "Export Tab URLs"
  }
}