diff --git a/mozilla/docshell/base/nsDSURIContentListener.cpp b/mozilla/docshell/base/nsDSURIContentListener.cpp
index 7b75af87c0b..73391d37b95 100644
--- a/mozilla/docshell/base/nsDSURIContentListener.cpp
+++ b/mozilla/docshell/base/nsDSURIContentListener.cpp
@@ -27,7 +27,8 @@
 //***    nsDSURIContentListener: Object Management
 //*****************************************************************************
 
-nsDSURIContentListener::nsDSURIContentListener() : mDocShell(nsnull)
+nsDSURIContentListener::nsDSURIContentListener() : mDocShell(nsnull), 
+   mParentContentListener(nsnull)
 {
 	NS_INIT_REFCNT();
 }
@@ -138,6 +139,7 @@ void nsDSURIContentListener::GetParentContentListener(nsIURIContentListener**
 void nsDSURIContentListener::SetParentContentListener(nsIURIContentListener* 
    aParentListener)
 {
+   // Weak Reference, don't addref
    mParentContentListener = aParentListener;
 }  
 
diff --git a/mozilla/docshell/base/nsDSURIContentListener.h b/mozilla/docshell/base/nsDSURIContentListener.h
index 0c7f7a5ca14..d4904354424 100644
--- a/mozilla/docshell/base/nsDSURIContentListener.h
+++ b/mozilla/docshell/base/nsDSURIContentListener.h
@@ -53,8 +53,9 @@ protected:
 
 protected:
    nsDocShell*                      mDocShell;
-   nsCOMPtr<nsIURIContentListener>  mParentContentListener;
    nsCOMPtr<nsIPresContext>         mPresContext;
+
+   nsIURIContentListener*            mParentContentListener;  // Weak Reference
 };
 
 #endif /* nsDSURIContentListener_h__ */