Trunk build, fresh pull today, FreeBSD 4.3 nsSafeSaveFile::CreateBackup() calls CopyToNative with a 1st parameter of nsnull. That's "newParent" in io/nsLocalFileUnix.cpp's CopyToNative(), and there's no check for a null newParent before using it. Win32 (nsLocalFileWin.cpp) ends up checking for/handling a null newParent. Crashes randomly and often!
I think bnesse backed himself out after tbox went orange.
I landed sfrasers patch for bug 164190 on the trunk. It was backed out shortly thereafter due to orangeness. This is fixed.