http://bugs.winehq.org/show_bug.cgi?id=33354
--- Comment #8 from Jacek Caban jacek@codeweavers.com 2013-04-30 04:26:22 CDT --- It looks like there is a conflict between nspr shiped with the app and Wine Gecko. Fixing this bug should help:
https://bugzilla.mozilla.org/show_bug.cgi?id=856404