What OS version of Firefox you using Halo?
Google shows a fair amount of links regarding this problem for Linux Ubuntu users (couldn't find me a solution), albeit I've never had the problem occur for me on my WinXP SP2 setup.
Google shows a fair amount of links regarding this problem for Linux Ubuntu users (couldn't find me a solution), albeit I've never had the problem occur for me on my WinXP SP2 setup.