Don’t know much about Suse Enterprise, there is actually a seperate forum for enterprise I believe but I’m not sure of the link
Installing most software in Opensuse though (as well as most other flavours of linux) is a different approach to windows in that it’s done through what are called package managers
On your menu, under System, Configuration in Opensuse, you should be able to find something like Install Software, or a program called Yast
In Yast’s Software section you’ll see something like Software Management, open that and there you have your package manager (Install Software opens the same thing)
Once that’s open, just type firefox in the search box and tick the box at the side of Mozilla Firefox in the list that comes back, then click Accept
That downloads the appropriate firefox package for your distribution and installs it for you
But it could also be it’s only finding the version off the installation disk, take a look at adding software repositories so that you get up to date stuff
Having said that, once the firefox is installed it will update itself anyway