Yes, I just used firefox to test and it happens but it does have the correct avatar so I assume its still a caching issue of some sort. All my extensions were disabled so has nothing to do with that.
I get this. If clicking on a user's profile and then "edit" it takes me to their profile but has my username instead of theirs. So have to click back and then re-click on edit again and then it rights itself. It's annoying.