Yeah, sites like http://www.didyouwatchporn.com/ http://www.didyouwatchporn.com/ and http://ha.ckers.org/weird/CSS-history-hack.html http://ha.ckers.org/weird/C

Yeah, sites like http://www.didyouwatchporn.com/ http://www.didyouwatchporn.com/ and http://ha.ckers.org/weird/CSS-history-hack.html http://ha.ckers.org/weird/CSS-history-hack.html fail to work in Firefox 4. The followup bugs are more to do with tuning what is allowed and what isn't, e.g. https://bugzilla.mozilla.org/show_bug.cgi?id=559722 https://bugzilla.mozilla.org/show_bug.cgi?id=559722.