I assume that you have a system with a working X Window server which you want to display the FireFox client on.
If this is the case, you need to enable access to your X Window system (xhost + or similar) and set the DISPLAY environmental variable on the Red Hat server to the IP address of your X Window system.
I am using putty to login to this linux server. I am trying to install a scheduling software. it has a launch pad.
when i execute the launchpad.sh, it says, unable to open the firefox browser. in the read me file, i can see that the server requires firefox to install this software.