[CentOS] Running firefox on a remote host on centos-4

Back in the day (read: before the latest firefox update), I used to be
able to ssh to a remote box, run 'firefox -local', and have that box fire
up its own firefox session even if I was running firefox on the system
from I which I sshed.  Those days seem to be gone.  No matter what I try, if 
I've got firefox running on my local desktop, the remote firefox command just 
fires off another instance of the local firefox session.

I've got several boxes running monitoring daemons reporting via http only to 
the localhost, so this was a handy feature for me.  Is there any official way 
to get it back?  If not, I guess I'll have to hack a 'localfirefox' script that 
doesn't do the nasty mozilla-xremote-client trick.

Ah, progress... *sigh*

-- 
Joshua Baker-LePain
Department of Biomedical Engineering
Duke University