From bcf7ff6db0067cbac8bf19c326682096d2a577d2 Mon Sep 17 00:00:00 2001
From: "mscott%netscape.com" <mscott%netscape.com>
Date: Thu, 4 Mar 1999 20:10:20 +0000
Subject: [PATCH] Don't add a null urllistener...

---
 mailnews/base/src/nsUrlListenerManager.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mailnews/base/src/nsUrlListenerManager.cpp b/mailnews/base/src/nsUrlListenerManager.cpp
index c3454f6ae80..139a3e53343 100644
--- a/mailnews/base/src/nsUrlListenerManager.cpp
+++ b/mailnews/base/src/nsUrlListenerManager.cpp
@@ -48,7 +48,7 @@ NS_IMPL_THREADSAFE_ISUPPORTS(nsUrlListenerManager, nsIUrlListenerManager::GetIID
 
 nsresult nsUrlListenerManager::RegisterListener(nsIUrlListener * aUrlListener)
 {
-	if (m_listeners)
+	if (m_listeners && aUrlListener)
 		m_listeners->AppendElement(aUrlListener);
 
 	return NS_OK;