Mozilla in German

Just finished installing redhat 9, yes, I'm a newbie. Got everything
working for the most part, sound, cd, printer. This was about the 5th
time I re-installed the OS in the past 24 hours. Browser was working
fine on all other installs, now all of a sudden, my browser is in German
rather then english. The rest of the system is in English. I just can't
figure out how to turn the browser back to English from German. And
frankly, I don't even know how it changed to German. I don't have
Mozilla loaded anywhere else to read the menu items. Can anyone tell me
which menu the lang pref is in?