Despite having Mcafee security suite fully updated, my computer still fails browser test. why?

mozilla firefox browser failed the security test at
http://www.pcflank.com/browser_test1.htm
but mcafee security center is fully working on computer. Then why? mcafee security center has antivirus, firewall, antispyware etc etc

That test is pretty bogus. Just a bunch of scare tactics to get you to [...]