It's much, much better, but still needs some work. Love the "Tell sites not to track me" option. Touch responsiveness is good, but scrolling is still not as smooth as the Dolphin Browser, Stock Browser/ICS+ Browser, or Chrome Beta browsers -- in FF the scrolling goes smooth, then it hiccups, then smooth, then hiccups (I'm on a Galaxy Nexus, btw). Also, while rendering is pretty good, it still doesn't render pages as well as the other browsers -- check IGN.com as an example -- the top search bar doesn't stay put on the top of the screen in FF like it should, but it does in the other browsers (in FF it eventually moves back to the top, but when scrolling you'll see it in the middle of the page). I'm sure they'll continue to optimize though and work out the kinks -- they were late to the mobile browser game, but this release has definitely improved the quality of the browser rather quickly, so we'll see what happens...