I would guess and say you have firefox 3. I never got 3, I still have firefox 2. My firefox browser displays the wiki perfectly. It's possible that your firefox caught a glitch and reinstalling would immediately fix it. If that does not, check your settings. If your active x controls are disabled, you might need to enable them. If thats not it, check your javascript and make sure its enabled. If thats not it, check the firefox website for help. There may be an addon that will help or something also.