THe new update update breaks site in Firefox! Since I updated to the 6.0.3/Agency update my site no longer works in Firefox on either Windows (various versions) or Mac OSX. You cannot use the browsers back/forward buttons. The browser goes to the URL but the page soesn't load in - the screen is just blank. It works fine in other browsers (in fact it performs better) but not in forefox. Can you please provide a bug fix.