After installation, the extension appeared in the list and is in the enabled state. I don't see where or how to configure it for use. There is no button on the toolbar. I use Firefox 115.23.0esr.
The extension is installed in Chrome, appears on the toolbar, you can open the configuration, but the extension does not see my server (version 5.5.2), although it entered the correct URL and token. Displays the message "2FAuth server is unavailable, check the URL"