Truespeed, reading IE and tabs, actually you are incorrect.
at the time when IE6 was released depand for tabbed browsing was indeed very small. now it's a different story. check out
http://www.betanews.com/article/Micr...fox/1100534022
neoxed is partially right. for ffxp to support tabs, it needs to be truely multi-threaded, which ffxp currently isn't.
something like this needs to be properly planned out, not bolted-on to the current code base.