http://bugs.winehq.org/show_bug.cgi?id=20160
--- Comment #6 from Arkadiusz Piekarz piekarzarkadiusz@gmail.com 2009-10-05 06:17:43 --- I'll take a liberty of quoting Austin English from bug 14588 :
------ That's bug 20160, which has an easy workaround: $ wget kegel.com/wine/winetricks $ sh winetricks gecko ------
Doing these commands fixed the issue with Gecko installer.