From f9d23bfed2f16415fb0cb1ffbb042f41b97249ab Mon Sep 17 00:00:00 2001
From: "sspitzer%netscape.com"
 <sspitzer%netscape.com@18797224-902f-48f8-a5cc-f745e15eee43>
Date: Fri, 4 Feb 2000 22:37:11 +0000
Subject: [PATCH] bulletproofing.  r=alecf.  see bug #26608

git-svn-id: svn://10.0.0.236/trunk@59786 18797224-902f-48f8-a5cc-f745e15eee43
---
 mozilla/xpfe/appshell/src/nsWebShellWindow.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mozilla/xpfe/appshell/src/nsWebShellWindow.cpp b/mozilla/xpfe/appshell/src/nsWebShellWindow.cpp
index 89b09c55a64..c44bc034fb9 100644
--- a/mozilla/xpfe/appshell/src/nsWebShellWindow.cpp
+++ b/mozilla/xpfe/appshell/src/nsWebShellWindow.cpp
@@ -2176,7 +2176,7 @@ PRBool nsWebShellWindow::ExecuteCloseHandler()
         nsCOMPtr<nsIDocumentViewer> docViewer;
         nsCOMPtr<nsIPresContext> presContext;
         docViewer = do_QueryInterface(contentViewer);
-        if (NS_SUCCEEDED(docViewer->GetPresContext(*getter_AddRefs(presContext)))) {
+        if (docViewer && NS_SUCCEEDED(docViewer->GetPresContext(*getter_AddRefs(presContext)))) {
           nsEventStatus status = nsEventStatus_eIgnore;
           nsMouseEvent event;
           event.eventStructType = NS_EVENT;