Somehow, I have an error in Firefox that works fine in IE. Yes, I was shocked too.
The file upload pop up window won't show in Firefox when clicked. The window is trying to open at the bottom of the page, and I mean the bottom - scrolling down several feet shows it flickering but then it continues to drop down the page. Everything works fine in IE. Weird.
Didn't happen until I just upgraded to the latest version (2.9.3) from 2.8.7.2 RC. I kept my Default template from before, the .css and config.ini as prescribed by the documentation, and reinstalled the latest Download Plugin. Joomla is 1.5.20.
Thanks!