Windows XP
Crashed when closing Firefox [@ JS_GetClass - GetScopeOfObject][@ 0x20202020 - JS_GetClass][@ 0x00000001 - JS_GetClass][@ 0x01010101 - JS_GetClass][@ 0xc8900960 - JS_GetClass][@ 0x40096c71 - JS_GetClass][@ 0x01012020 - JS_GetClass][@ GetScopeOfObject]
XPConnect