Cross-platform Firefox on a stick
A USB stick, that is. Our pal Jordan Running over at DownloadSquad found a cross-platform version of Firefox you can install on an external drive, such as a USB flash drive, iPod shuffle, or iPod nano, that can be plugged into and run on both Windows and OS X. There's some simple file editing involved, but once you get over that minor hump you'll have one fully portable copy of Firefox - including all your search history, settings, extensions and bookmarks - ready to roll in your pocket that can run on Windows and OS X.
One word of caution: I'm pretty sure that not *all* Firefox extensions are going to work between Windows and OS X. Some extensions are platform independent, others most certainly are not. Your portable Firefox should run just fine on both OS's, but the platform dependent extensions will simply be disabled.
