7.2 is actually quite OLD.
August - 2001. Three and a half years old.
And, let me ask you, you expect 3 1/2 year old (actually more like 4.5 based on the compiler used to make enigma) to actually just RUN Firefox?
Umm, yeah. Okay.
I think your judgement of Linux based on Enigma (redhat 7.2) IS NOT TYPICAL today, using a updated Distro.
Enigma was the second worst (in bugs, security and just flat out problems) redhat release right behind RedHat 6.1, which was compromisable two weeks before it was released.
Try an [link|http://ftp.cs.umn.edu/pub/ubuntu-releases/.pool/warty-live-i386.iso|Ubuntu LiveCD] in it. Then make a judgement. Of course you'll have to give a few points for running from CD... as the CD Reader is the biggest holdup there.