Firefox running slowly in Linux.

In my move away from Windows, one of the last bits holding on is the speed of Firefox under Linux (both Fedora and Ubuntu)

There is a possible solution I'll be trying tonight when I get home.

http://forums.fedoraforum.org/showthread.php?t=209564#postmenu_1142757

Primarily it seems the delays are caused by the excessive DNS searches introduced by Belkin.