BuddyPress.org

My website, connorgrady.com, displays correctly in Internet Explorer but in FireFox everything is huge! I think there might be something wrong with the CSS because for recently created pages, when I try to put something into a heading tag it displays like a paragraph. But if you look at the source, it shows its in a h2 tag.

I use WordPress 2.8.1 and BuddyPress 1.0.3