[Bug 4938] New: Firefox crashes on startup

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=4938

Summary: Firefox crashes on startup
           Product: Wine
           Version: CVS
          Platform: Other
        OS/Version: other
            Status: NEW
          Keywords: regression, download
          Severity: major
          Priority: P2
         Component: wine-misc
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Sometime in the past week or so, something changed
to break Firefox 1.5, which now crashes on startup.
The interesting part of the log is:

Unhandled exception: page fault on write access to 0x0000001a in 32-bit code
(0x6033e436).
...
Backtrace:
=>1 0x6033e436 in xpcom_core (+0x2e436) (0x6033e436)
  2 0x7b4fa436 WINPROC_CallWndProc+0x5e(hwnd=<register not in topmost frame>,
msg=0x113, wParam=0x0, lParam=0x264b) [/home/dank/wine/dlls/user/winproc.c:418]
in user32 (0x7b4fa436)
  3 0x7b4ff67c CallWindowProcW+0x164(func=0x7b559c34, hwnd=0x1002a, msg=0x113,
wParam=0x0, lParam=0x264b) [/home/dank/wine/dlls/user/winproc.c:3095] in user32
(0x7b4ff67c)
  4 0x7b4d5662 DispatchMessageW+0xb2(msg=0x7b90fd18)
[/home/dank/wine/dlls/user/message.c:3040] in user32 (0x7b4d5662)
  5 0x0051866b in firefox (+0x11866b) (0x0051866b)
...