After updating to wordpress 3.3, I can no longer use Firefox to upload images. The screen turns dark as normal, but the upload box does not appear.
I've confirmed this problem on two different PC's, both running Windows 7 64bit. One is running Firefox 8.0, the other has Firefox 8.0.1.
However, I can use Google Chrome with no problems, so I don't believe it is a problem with my site.
Any help would be much appreciated!