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-rw-r--r--layout/forms/nsComboboxControlFrame.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/layout/forms/nsComboboxControlFrame.cpp b/layout/forms/nsComboboxControlFrame.cpp
index f69198cc7..5a9438939 100644
--- a/layout/forms/nsComboboxControlFrame.cpp
+++ b/layout/forms/nsComboboxControlFrame.cpp
@@ -1040,6 +1040,9 @@ nsComboboxControlFrame::HandleRedisplayTextEvent()
mRedisplayTextEvent.Forget();
ActuallyDisplayText(true);
+ if (!weakThis.IsAlive())
+ return;
+
// XXXbz This should perhaps be eResize. Check.
PresContext()->PresShell()->FrameNeedsReflow(mDisplayFrame,
nsIPresShell::eStyleChange,