Nah, haven't heard anything great it does and it may break some of the extensions
I use now. I'm not on the forefront with Firefox, stay up with the latest portable
versions and they're a little behind sometimes. Not really crazy about Firefox
anymore but need some of the tools that I've installed on mine.
Chrome's the best browser if you don't need the tools. It sort of runs virtually and
doesn't let anything harm your machine. Not many tools available yet though. It's
also about twice as fast as well as being safer.