First you have to configure SSH server in your machine. Now to run GUI program in server from client you have to understand how GUI works in your local system internally.
When you run filefox in your Linux system, it connects to your display internally and execute. But when you run filefox from client machine, internally it connects client's display and execute.
So, you have to detach your client display and attach server display. To do that, use below given command.
$ export DISPLAY=:1