[CentOS] remote ssh to machine how display firefox

I can ssh into a remote machine.
I can start X on that machine with startx

How do I then start firefox on that machine (from the ssh prompt) and
have it display on my machine in my office.

So I want to be using firefox on the remote machine but displaying the
screen output from firefox in my office.
Both boxes are running centos 5.

how is that done?


Jerry