diff --git a/content/base/public/nsIScriptLoader.idl b/content/base/public/nsIScriptLoader.idl
deleted file mode 100644
index 9ca1281288a..00000000000
--- a/content/base/public/nsIScriptLoader.idl
+++ /dev/null
@@ -1,106 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * 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 Mozilla.
- *
- * The Initial Developer of the Original Code is
- * Netscape Communications.
- * Portions created by the Initial Developer are Copyright (C) 2001
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *   Vidur Apparao <vidur@netscape.com> (original author)
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either of the GNU General Public License Version 2 or later (the "GPL"),
- * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
-#include "nsISupports.idl"
-
-interface nsIDocument;
-interface nsIScriptElement;
-interface nsIScriptLoaderObserver;
-
-[scriptable, uuid(339a4eb5-dac6-4034-8c43-f4f8c645ce57)]
-interface nsIScriptLoader : nsISupports {
-  /**
-   * Initialize loader with a document. The container of this document
-   * will be used for getting script evaluation information, including
-   * the context in which to do the evaluation. The loader maintains a 
-   * strong reference to the document.
-   *
-   * @param aDocument The document to use as the basis for script
-   *        processing.
-   */
-  void init(in nsIDocument aDocument);
-
-  /**
-   * The loader maintains a strong reference to the document with
-   * which it is initialized. This call forces the reference to
-   * be dropped.
-   */
-  void dropDocumentReference();
-
-  /**
-   * Add an observer for all scripts loaded through this loader.
-   *
-   * @param aObserver observer for all script processing.
-   */
-  void addObserver(in nsIScriptLoaderObserver aObserver);
-
-  /**
-   * Remove an observer.
-   *
-   * @param aObserver observer to be removed
-   */
-  void removeObserver(in nsIScriptLoaderObserver aObserver);
-  
-  /**
-   * Process a script element. This will include both loading the 
-   * source of the element if it is not inline and evaluating
-   * the script itself.
-   *
-   * @param aElement The element representing the script to be loaded and
-   *        evaluated.
-   * @param aObserver An observer for this script load only
-   *
-   */
-  void processScriptElement(in nsIScriptElement aElement,
-                            in nsIScriptLoaderObserver aObserver);
-
-  /**
-   * Gets the currently executing script. This is useful if you want to
-   * generate a unique key based on the currently executing script.
-   */
-  nsIScriptElement getCurrentScript();
-
-  /**
-   * Whether the loader is enabled or not.
-   * When disabled, processing of new script elements is disabled. 
-   * Any call to processScriptElement() will fail with a return code of
-   * NS_ERROR_NOT_AVAILABLE. Note that this DOES NOT disable
-   * currently loading or executing scripts.
-   */
-  attribute boolean enabled;
-};