Thank you, marko! I wasn't aware of the default ipv6 setting in Fedora. This is most likely the entire issue. And, no, I don't have an HTTP proxy.
The first thing I always have to do with Firefox is toggle ipv6 off, so your comment makes perfect sense. I'll check through the forums for a proper how-to. I know that different distros prefer different ways of blacklisting/commenting out, etc.
I also found (finally) the Software Management Guide (http://docs.fedoraproject.org/en-US/...agement_Guide/
) at last. In the morning I'll check through the forums for disabling ipv6 as default and give that a whirl.
So many words to get such a simple answer...that's me in a nutshell :-)