Good advice above of CD Paranoia.
Regarding web browser, my suggestion obviously is to use a tested & trusted browser from the Fedora repositories, such as Firefox.
However if you want to install an unsupported browser, here are easy instructions to get SRWare Iron running:
Download the correct tar.bz (32 or 64 bit depending on your architecture) from here:
http://www.srware.net/forum/viewtopic.php?f=18&t=2934 and ask for help in that thread if the download is not self-explanatory.