These comments are unfounded. You certainly can browse the web all you want. If you run across a site that needs flash, firefix helpfully directs you to Adobe/macromedia where they have a rpm already for you that integrates nicely. And there is _plenty_ of web space out there without proprietary crap on them. To state that you can't do the simplest things like web browsing is a bunch of horse crap and FUD.
You should know what you are talking about, because when I tested this in Fedora 7 test 3 it doesn't work - and also it doesn't work in FC6.
If you visit any page with flash content Firefox suggests installing Flash plugin from Adobe, but install fails every time.
I filed a bug: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=236881