diff --git a/mozilla/widget/src/windows/nsAppShell.h b/mozilla/widget/src/windows/nsAppShell.h
index f13e73c4324..0afd8d98e8a 100644
--- a/mozilla/widget/src/windows/nsAppShell.h
+++ b/mozilla/widget/src/windows/nsAppShell.h
@@ -19,7 +19,6 @@
 #ifndef nsAppShell_h__
 #define nsAppShell_h__
 
-#include "nsObject.h"
 #include "nsIAppShell.h"
 
 /**
diff --git a/mozilla/widget/src/windows/nsFileWidget.h b/mozilla/widget/src/windows/nsFileWidget.h
index 903e6670eaf..3cfd747bb93 100644
--- a/mozilla/widget/src/windows/nsFileWidget.h
+++ b/mozilla/widget/src/windows/nsFileWidget.h
@@ -19,7 +19,6 @@
 #ifndef nsFileWidget_h__
 #define nsFileWidget_h__
 
-#include "nsObject.h"
 #include "nsToolkit.h"
 #include "nsIWidget.h"
 #include "nsIFileWidget.h"
diff --git a/mozilla/widget/src/windows/nsLookAndFeel.h b/mozilla/widget/src/windows/nsLookAndFeel.h
index 4f64a050fd6..00319a973a6 100644
--- a/mozilla/widget/src/windows/nsLookAndFeel.h
+++ b/mozilla/widget/src/windows/nsLookAndFeel.h
@@ -18,7 +18,6 @@
 
 #ifndef __nsLookAndFeel
 #define __nsLookAndFeel
-#include "nsObject.h"
 #include "nsILookAndFeel.h"
 
 class nsLookAndFeel: public nsILookAndFeel {
diff --git a/mozilla/widget/src/windows/nsWindow.h b/mozilla/widget/src/windows/nsWindow.h
index f4564246e39..183a40e4e06 100644
--- a/mozilla/widget/src/windows/nsWindow.h
+++ b/mozilla/widget/src/windows/nsWindow.h
@@ -20,7 +20,6 @@
 
 #include "nsBaseWidget.h"
 #include "nsdefs.h"
-#include "nsObject.h"
 #include "nsSwitchToUIThread.h"
 #include "nsToolkit.h"
 
@@ -47,8 +46,7 @@ class nsNativeDragTarget;
  * Native WIN32 window wrapper. 
  */
 
-class nsWindow : public nsObject,
-                 public nsSwitchToUIThread,
+class nsWindow : public nsSwitchToUIThread,
                  public nsBaseWidget
 {