<< One of the speakers at a Toorcon security conference session last weekend has admitted that claims he and an accomplice made regarding an "unfixable" flaw in Firefox, and a video of the two purportedly exploiting this flaw, were a not-so-elaborate hoax. >>

via BetaNews:
betanews.com/article/Firefox_F ...

the apologizing:
developer.mozilla.org/devnews/ ...