Using Firefox, I cannot create a user or login

[alansh]

Something very weird. My default browser is Firefox. I used that to set up my forum. But I cannot use Firefox to login (it comes back with "The submitted form was invalid. Try submitting again" or register a new user (it keeps going back to the registration terms when I select 'I agree to those terms').

But if I use Vivaldi (a chromium clone), it all works OK. So, it suggest that there is something wrong with Firefox. I've disabled all the extensions, but that made no difference.

Has anyone else see this?

Alan

[alansh]

Forget it - I closed FF down completely and restarted it. All working.