Could you please elaborate on why that's the case? It's extremely uncommon for someone to be using a Linux distribution of such vintage. Has it been forced on you by an institution? I am genuinely curious.

Googling for 'red hat 9 documentation':
Personal Firewalls
Basic Firewall Configuration
Firewalls

These manuals are probably installed somewhere on your workstation (or are on the media used to install the operating system), but here's an online version:
Redhat Linux 9 Documentation

Given that new security holes are announced nearly every single day, a firewall on a long ago discontinued version of Linux should not be very comforting (legitimate traffic can still remotely exploit software which is known to be vulnerable):
https://rhn.redhat.com/errata/rhel-server-6-errata.html


Not according to the first two google results for 'red hat HP Laserjet P1102':
redhat linux drivers for HP LaserJet Pro P1102 Printer [solved]
foo2zjs: a linux printer driver for ZjStream protocol

You can try checking with the Fedora Legacy project; they provided updates and security fixes for Red Hat Linux 9 after Red Hat, Inc. discontinued RH9. That said, Fedora Legacy shut down a few years ago and most mirrors aren't even working anymore. I tried over 10 links on the mirror list before hitting one that is still reachable. In one of their repositories you may find a more recent browser than those you are currently using, but whatever Fedora Legacy has to offer will by no means be contemporary.

The Fedora Legacy Project
Fedora Legacy Repository

You could try building one yourself, but I doubt a modern browser's source will build on such an old system (although there's nothing preventing you from grabbing the code and giving it a try). Perhaps you can find a statically linked Opera binary? I don't think such a beast exists for Firefox.

Perhaps you'll have some luck at:
http://www.opera.com/browser/downloa...rements/#linux
http://www.opera.com/browser/download/?custom=yes

Regards,
Alister