Created attachment 268811 [details] example See this as example https://bugs.gentoo.org/page.cgi?id=voting/bug.html&bug_id=352420
CC'ing upstream here as I think its an upstream bug.
It's indeed an upstream bug which I fixed a few hours ago, see https://bugzilla.mozilla.org/show_bug.cgi?id=652381. You can either take my patch from there, or sync Gentoo Bugzilla using cvs/bzr (my patch has already been committed).
Fixed, thanks!