http://bugs.winehq.org/show_bug.cgi?id=24493
--- Comment #2 from Austin English austinenglish@gmail.com 2010-09-21 23:27:01 CDT --- Doesn't crash here, but hangs on fixme:wininet:InternetLockRequestFile STUB fixme:wininet:InternetLockRequestFile STUB err:mshtml:on_stop_nsrequest RemoveRequest failed: 80004005 err:mshtml:on_stop_nsrequest RemoveRequest failed: 80004005
and sits at a blank page.
BTW, your log lacks debugging symbols. Installing gecko-dbg (download manually or install with winetricks) may help as well.