http://bugs.winehq.org/show_bug.cgi?id=17783
--- Comment #8 from Paul "TBBle" Hampson Paul.Hampson@Pobox.com 2009-04-18 10:53:47 --- For reference, here are some threads from the Steam forums mentioning this problem. It seems the mods there don't realise that this is a server-configuration problem, and believe these users have distrusted Verisign...
http://forums.steampowered.com/forums/showthread.php?t=827011&highlight=... http://forums.steampowered.com/forums/showthread.php?t=822050&highlight=...
As such, I'm not sure this is a Wine bug per. se, although I don't know if there's actually a method to add certificates to wine-gecko's certificate store.