I seem to remember this coming up in a thread a while back, but don't remember the outcome or the thread title to research it...
Anyways, yeah, when I'm browsing gear, when I go to sort by level or whatever in Firefox I get a blank page. When I switch to IE with IEtab it works fine...
The only plugins I have on F.F. that could possibly effect it are Ad Block Plus and Noscript...both of which are configured for FFXIAH, so I dunno, any suggestions?