diff --git a/accessible/public/nsIAccessibleSelection.idl b/accessible/public/nsIAccessibleSelection.idl
deleted file mode 100644
index c3beb4cd3b12..000000000000
--- a/accessible/public/nsIAccessibleSelection.idl
+++ /dev/null
@@ -1,72 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- *
- * The contents of this file are subject to the Mozilla Public
- * License Version 1.1 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of
- * the License at http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS
- * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- * implied. See the License for the specific language governing
- * rights and limitations under the License.
- *
- * The Original Code is the Mozilla browser.
-
- *
- * The Initial Developer of the Original Code is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1999 Netscape Communications Corporation. All
- * Rights Reserved.
- *
- * Original Author: Marc Mulcahy (marc.mulcahy@sun.com)
- *
- * Contributor(s): Paul Sandoz (paul.sandoz@sun.com)
- *                 Bill Haneman (bill.haneman@sun.com)
- *                 John Gaunt (jgaunt@netscape.com)
- */
-
-
-#include "nsISupports.idl"
-#include "nsIAccessible.idl"
-
-[scriptable, uuid(94A1C5C2-25C2-46B3-BD0C-525D1D3E3346)]
-interface nsIAccessibleSelection : nsISupports
-{
-    /**
-      * Returns the number of accessible children currently selected.
-      */
-  readonly attribute long selectionCount;
-
-    /**
-      * Adds the specified accessible child of the object to the
-      * object's selection.
-      */
-  void addSelection (in long index);
-
-    /**
-      * Removes the specified child of the object from the object's selection.
-      */
-  void removeSelection (in long index);
-
-    /**
-      * Clears the selection in the object so that no children in the object
-      * are selected.
-      */
-   void clearSelection ();
-
-    /**
-      * Returns a reference to the accessible object representing the specified
-      * selected child of the object.
-      */
-  nsIAccessible refSelection (in long index);
-
-    /**
-      * Determines if the current child of this object is selected
-      */
-  boolean isChildSelected (in long index);
-
-    /**
-      * If the object does not accept multiple selection, return false.
-      */
-  boolean selectAllSelection ();
-};