Mozilla going to Phoenix
The coolest part about Mozilla moving to the Phoenix codebase is that Matt Croydon got quoted. I've been using Phoenix ever since it came out over Phoenix. If you've been using Mozilla over Phoenix, you're losing precious seconds, possibly minutes throughout the day. It's soooo much faster. I used to be die hard IE user - but Phoenix blows it out of the water. I don't know that it's faster, but if not, it's only milliseconds. And once you're addicted to tabbed browsing, it's tough to go back. The best part about the move is that (hopefully) Phoenix will get better. It's already got way more themes, which allows you to make it look as cool as you want.