The new version of Firefox comes out today at 1:00 EST. I've been using the beta for a while myself and it has some pretty neat features. Here's a video demostrating some of the new functionality
http://people.mozilla.com/~beltzner/...f-firefox3.swf
And for those who don't know they're trying to set a Guiness World Record for the most downloads in a single day.
http://www.spreadfirefox.com/en-US/worldrecord/