Well, the reports of security problems with Firefox are just down to a prank by kids, as noted:
Hmm, either way I'm still sticking with Firefox, IE is junk:
" Microsoft Repatches Repatch, Issues Third Fix For IE Flaws
This update cycle has not been an example of our best work," admitted Tony Chor, group program manager for Internet Explorer, in an entry on the team's blog."
04 October 2006