diff --git a/editor/idl/nsIEditActionListener.idl b/editor/idl/nsIEditActionListener.idl
index f57586a1b80..438e0451dd5 100644
--- a/editor/idl/nsIEditActionListener.idl
+++ b/editor/idl/nsIEditActionListener.idl
@@ -38,7 +38,8 @@
 
 #include "nsISupports.idl"
 #include "domstubs.idl"
-#include "nsISelection.idl"
+
+interface nsISelection;
 
 
 /*
diff --git a/editor/idl/nsIHTMLEditor.idl b/editor/idl/nsIHTMLEditor.idl
index eacff09db02..e650277bea0 100644
--- a/editor/idl/nsIHTMLEditor.idl
+++ b/editor/idl/nsIHTMLEditor.idl
@@ -40,8 +40,8 @@
 
 #include "nsISupports.idl"
 #include "domstubs.idl"
-#include "nsIAtom.idl"
 
+interface nsIAtom;
 interface nsISupportsArray;
 interface nsISelection;
 interface nsIContentFilter;
diff --git a/editor/idl/nsIHTMLObjectResizer.idl b/editor/idl/nsIHTMLObjectResizer.idl
index b1b758b859e..90b53ecc6e4 100644
--- a/editor/idl/nsIHTMLObjectResizer.idl
+++ b/editor/idl/nsIHTMLObjectResizer.idl
@@ -38,8 +38,6 @@
 
 #include "nsISupports.idl"
 #include "domstubs.idl"
-#include "nsIAtom.idl"
-#include "nsISelection.idl"
 
 interface nsIHTMLObjectResizeListener;
 
diff --git a/editor/libeditor/html/nsHTMLCSSUtils.cpp b/editor/libeditor/html/nsHTMLCSSUtils.cpp
index 2bb91d022ec..ac1a3474529 100644
--- a/editor/libeditor/html/nsHTMLCSSUtils.cpp
+++ b/editor/libeditor/html/nsHTMLCSSUtils.cpp
@@ -51,6 +51,7 @@
 #include "nsIDOMDocument.h"
 #include "nsIDOMDocumentView.h"
 #include "nsIContent.h"
+#include "nsIAtom.h"
 #include "nsTextEditUtils.h"
 #include "nsReadableUtils.h"
 #include "nsUnicharUtils.h"