This is really odd, because it shouldn't be happening at all.
When I access wellness.learnitlive.com on FireFox, I see it redirected to: http://www.learnitlive.com/classes-events/Health-Wellness/280.html
When I access wellness.learnitlive.com on IE/Chrome/Safari/Opera, I see it redirected to: http://www.learnitlive.com/wellness.php
Both are from the same machine. I'm not having FF use any proxy. Moreover, I see the same results on someone else's machine as well.
The /classes-events/Health-Wellness/280.html redirection was specified in the httpd.conf file yesterday, but is now set to /wellness.php and the httpd server has been restarted several times since the change.
I'm not sure why FF would be behaving like this.
I'm using OpenDNS and have refreshed their cache as well.