I wanted to upload the new avatar picture, but nothing happened. I have clicked on upload new picture , but it won't let me to browse it from my computer. Anybody else having similar issues?
Is there any other way to change avatar?

Oh no, I have lost my current avatar picture and it won't let me upload a new picture

Right now, you have a picture of an eye where the iris is a clock.

My best suggestion in this kind of situation is to change browsers - I think someone in a very similar situation had good luck with Opera, after Firefox wouldn't play nice. You could also try Safari or Chrome.

Yes I can only choose from avatars from Forum gallery. And still can't upload new picture. I will not change firefox, I got used to it. maybe there must be some extension to add.

Now I will try to log in from the laptop with Ubuntu. If it still doesn't working , than it's a bug on Kunena.

And it's not working even from the other computer.
Upload button just doesn't work.