The IE versus FF security track record
Robert Hensing posts an interesting piece on his blog, with a take on a recent USAToday article.
http://blogs.technet.com/robert_hensing/archive/2008/06/18/usa-today-writes-an-article-about-ff-3-0-hilarity-ensues.aspx
The bottom line, according to Robert, is that IE7 on Vista is much more secure than Firefox on anything.