How do I change my default web browser
 

Whenever I click a link in an email it always opens up Konqueror and I would prefer it to be Mozilla.

depends on your email client and your desktop manager (kde / gnome, other...)
for kmail you have to change file association for html files using kcontrol.
for evolution, you have to change the default browser in gnome-default-applications-properties.

I am using evolution but I am running fluxbox. Would I still need to change the gnome setting? And if so, how? I tried to edit that file with vi but it evidently isn't a text file.

i believe you just run that command

Thanks, that did it.