Bugzilla 522558 This bug has also been in FC10, FC11, now FC12.
If you have to connect to a host on internet from a command in the terminal.
This was a problem in FC10,FC11, Firefox for certain websites, connecting to. But Firefox doesn't seem to have problem in FC12, only commands from terminal.
See attachment below on how I fixed the problem on Ten different boxes I installed on i386 and X86_64 boxes. I guess everybody wasn't having this problem, but I sure was.