diff -r 000000000000 -r 6474c204b198 dom/interfaces/core/nsIDOMNodeList.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/interfaces/core/nsIDOMNodeList.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,23 @@
+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "domstubs.idl"
+
+/**
+ * The nsIDOMNodeList interface provides the abstraction of an ordered 
+ * collection of nodes, without defining or constraining how this collection 
+ * is implemented.
+ * The items in the list are accessible via an integral index, starting from 0.
+ *
+ * For more information on this interface please see 
+ * http://www.w3.org/TR/DOM-Level-2-Core/
+ */
+
+[scriptable, uuid(450cf0ba-de90-4f86-85bf-e10cc8b8713f)]
+interface nsIDOMNodeList : nsISupports
+{
+  nsIDOMNode    item(in unsigned long index);
+  readonly attribute unsigned long          length;
+};