Portable Firefox is a fully functional package of the Mozilla Firefox web browser optimized for use on a USB key drive. It has some specially-selected optimizations to make it perform faster and extend the life of your USB key as well as a specialized launcher that will allow most of your favorite extensions to work as you switch computers. It will also work from a CDRW drive (in packet mode), ZIP drives, external hard drives, some MP3 players, or flash RAM cards (Note: It will not run from read-only media like a CD-R, but Portable Firefox Live will).
Version 188.8.131.52 is a maintenance release.
What's new in this version: