Upload button having issues with Firefox

Hello,

I have been banging my head on this issue and found it is an issue with firefox using IMCE. I confirmed the issue with firefox, works in IE and Goggle Chrome.

What happens is, when you browse for a file, hit ok, and when you hit the Upload button, it just keeps on playing the cycle gif and never finishes. I verified on two different firefox installs on two different computers, one linux, one vista. I get the error on my site, as well as the demo site @ http://ufku.com/?q=imce&app=TinyMCE|url@src

Currently, the work around we are using is, once the upload should have been done we hit the directory link to refresh and there is the file. Going to go content editor release soon so Really don't want to have to walk them through That :D

Stats: (Everything up to date module wise)
Drupal 6.6
tinytinymce
IMCE 6.x-1.1

Let me know if you need any other info. I have seen other posts about this but have not seen anything about it being a browser specific issue.