but it do not work, is it not compatible with it? I could register the usb dongle in the admin page. But if i would login to the page again i get the message that i should do some thing with the key. Then i press the button but nothin happens. During the registration of the dongle pressing the button has worked. In the debuggin console of firefox also nothing happens.
So the question is it is a FW problem of the dongle or of the nextcloud u2f application plugin?