1/18 build. Run mozilla (startup page set to www.mozilla.org), change the www in the urlbar to bugzilla and hit return to go to bugzilla.mozilla.org, click on "the change your password or user preferences" link, and when the page loads, click backarrow. Repeatedly I get a message on stdout: Gtk-WARNING **: invalid cast from (NULL) pointer to `GtkObject' warning: attempted to CreateNative() without a superwin parent followed by a crash: #0 0x406ec733 in nsWindow::CreateNative (this=0x8562990, parentWidget=0x0) at nsWindow.cpp:1577 #1 0x406e4b79 in nsWidget::CreateWidget (this=0x8562990, aParent=0x8676d78, aRect=@0xbfffeca4, aHandleEventFunction=0x414a7460 <HandleEvent(nsGUIEvent *)>, aContext=0x84d4040, aAppShell=0x0, aToolkit=0x0, aInitData=0xbfffece0, aNativeParent=0x0) at nsWidget.cpp:1085 and mSuperWin is null.

I haven't been able to reproduce any part of this, using 1/19 commercial build on RH 6.1. resolving as wfm, if anyone is still seeing this today, please reopen with any additional info needed to reproduce.

i don't see it either, trying win98

Sorry for the spam, changing QA contact.

Adding crash keyword

Worksforme: Platform: PC OS: Red Hat 6.2 (Linux 2.2.14) Mozilla: 2000101212 M18 Trunk Build Marking as Verified.