I just tried to "install" a nightly version of Mozilla to knoppix. It works!! I just downloaded the .tar.gz file no installer and extracted it using the command line, and using the command line started ./mozilla. This is very cool, I am even writing this message in Mozilla version 2003052505, again it works.

Zeke

P.S. Maybe someone else has already done this, but I don't know.
P.P.S. Try it, it works on my system.
P.P.P.S. I put mozilla in the ramdisk space.

EDIT: It works from the KDE fileman too.