diff -r 000000000000 -r 6474c204b198 js/ductwork/debugger/jsdebugger.jsm
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/ductwork/debugger/jsdebugger.jsm	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,24 @@
+/* -*-  Mode: C++; 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/. */
+
+this.EXPORTED_SYMBOLS = [ "addDebuggerToGlobal" ];
+
+/*
+ * This is the js module for Debugger. Import it like so:
+ *   Components.utils.import("resource://gre/modules/jsdebugger.jsm");
+ *   addDebuggerToGlobal(this);
+ *
+ * This will create a 'Debugger' object, which provides an interface to debug
+ * JavaScript code running in other compartments in the same process, on the
+ * same thread.
+ *
+ * For documentation on the API, see:
+ *   https://wiki.mozilla.org/Debugger
+ */
+
+const init = Components.classes["@mozilla.org/jsdebugger;1"].createInstance(Components.interfaces.IJSDebugger);
+this.addDebuggerToGlobal = function addDebuggerToGlobal(global) {
+  init.addClass(global);
+};