One of the announcements at Google IO was for the new custom fonts google is hosting and giving away for free. We thought this was pretty cool so we dropped these fonts on the hosted game servers homepage.
Subsequently, this broke firefox versions less than 3.5 as it requires CSS 3.0 and HTML 5 to work. (hah!).
We fixed the problem by setting times new roman as the secondary font. If you have firefox, you get the times new roman experience until you upgrade!