early data show we have a large number of folks crashing with stack traces that look like this PL_HashString [plhash.c, line 463] pref_HashPref [d:\builds\seamonkey\mozilla\modules\libpref\src\prefapi.c, line 1797] PREF_SetIntPref [d:\builds\seamonkey\mozilla\modules\libpref\src\prefapi.c, line 755] nsPref::SetIntPref [d:\builds\seamonkey\mozilla\modules\libpref\src\nsPref.cpp, line 578] XPTC_InvokeByIndex [d:\builds\seamonkey\mozilla\xpcom\reflect\xptcall\src\md\win32\xptcinvoke.cpp, line 139] nsXPCWrappedNativeClass::CallWrappedMethod [d:\builds\seamonkey\mozilla\js\src\xpconnect\src\xpcwrappednativeclass.cpp, line 905] WrappedNative_CallMethod [d:\builds\seamonkey\mozilla\js\src\xpconnect\src\xpcwrappednativejsops.cpp, line 192] js_Invoke [d:\builds\seamonkey\mozilla\js\src\jsinterp.c, line 667] js_Interpret [d:\builds\seamonkey\mozilla\js\src\jsinterp.c, line 2263] js_Invoke [d:\builds\seamonkey\mozilla\js\src\jsinterp.c, line 687] js_Interpret [d:\builds\seamonkey\mozilla\js\src\jsinterp.c, line 2263] js_Invoke [d:\builds\seamonkey\mozilla\js\src\jsinterp.c, line 687] js_Interpret [d:\builds\seamonkey\mozilla\js\src\jsinterp.c, line 2263] js_Invoke [d:\builds\seamonkey\mozilla\js\src\jsinterp.c, line 687] js_Interpret [d:\builds\seamonkey\mozilla\js\src\jsinterp.c, line 2263] js_Invoke [d:\builds\seamonkey\mozilla\js\src\jsinterp.c, line 687] js_Interpret [d:\builds\seamonkey\mozilla\js\src\jsinterp.c, line 2263] js_Invoke [d:\builds\seamonkey\mozilla\js\src\jsinterp.c, line 687] js_InternalInvoke [d:\builds\seamonkey\mozilla\js\src\jsinterp.c, line 760] JS_CallFunctionValue [d:\builds\seamonkey\mozilla\js\src\jsapi.c, line 2773] nsJSContext::CallEventHandler [d:\builds\seamonkey\mozilla\dom\src\base\nsJSEnvironment.cpp, line 568] nsJSEventListener::HandleEvent [d:\builds\seamonkey\mozilla\dom\src\events\nsJSEventListener.cpp, line 129] nsEventListenerManager::HandleEventSubType [d:\builds\seamonkey\mozilla\layout\events\src\nsEventListenerManager.cpp, line 643] nsEventListenerManager::HandleEvent [d:\builds\seamonkey\mozilla\layout\events\src\nsEventListenerManager.cpp, line 787] nsXULElement::HandleDOMEvent [d:\builds\seamonkey\mozilla\rdf\content\src\nsXULElement.cpp, line 2795] nsEventStateManager::CheckForAndDispatchClick [d:\builds\seamonkey\mozilla\layout\events\src\nsEventStateManager.cpp, line 1576] nsEventStateManager::PostHandleEvent [d:\builds\seamonkey\mozilla\layout\events\src\nsEventStateManager.cpp, line 785] PresShell::HandleEvent [d:\builds\seamonkey\mozilla\layout\html\base\src\nsPresShell.cpp, line 2767] nsView::HandleEvent [d:\builds\seamonkey\mozilla\view\src\nsView.cpp, line 797] nsViewManager::DispatchEvent [d:\builds\seamonkey\mozilla\view\src\nsViewManager.cpp, line 1686] HandleEvent [d:\builds\seamonkey\mozilla\view\src\nsView.cpp, line 69] nsWindow::DispatchEvent [d:\builds\seamonkey\mozilla\widget\src\windows\nsWindow.cpp, line 506] nsWindow::DispatchWindowEvent [d:\builds\seamonkey\mozilla\widget\src\windows\nsWindow.cpp, line 523] nsWindow::DispatchMouseEvent [d:\builds\seamonkey\mozilla\widget\src\windows\nsWindow.cpp, line 3467] ChildWindow::DispatchMouseEvent [d:\builds\seamonkey\mozilla\widget\src\windows\nsWindow.cpp, line 3683] nsWindow::ProcessMessage [d:\builds\seamonkey\mozilla\widget\src\windows\nsWindow.cpp, line 2769] nsWindow::WindowProc [d:\builds\seamonkey\mozilla\widget\src\windows\nsWindow.cpp, line 690] USER32.dll + 0x124c (0x77e7124c) more details about what the users were doing posted in attachment.

61 hits on this crash in the first 24 hours of 13 release testing.

All the below appear to be instances of the same underlying problem. saving preferences Went to Edit|Preferences|Fonts. Selected "use all fonts the page chooses", then FOOM! Crashed out. Closing the navigator preferences window Preferences/Debug changing font preferences

Changing component to PrefUI

Adding "crash" keyword to all known open crasher bugs.

This bug *** This bug has been marked as a duplicate of 24581 ***

verifying.

Bulk move of all Pref UI component bugs to new Preferences component. Pref UI component will be deleted.