diff --git a/modules/plugin/base/public/nsIScriptablePlugin.idl b/modules/plugin/base/public/nsIScriptablePlugin.idl
new file mode 100644
index 000000000000..a753fede26f6
--- /dev/null
+++ b/modules/plugin/base/public/nsIScriptablePlugin.idl
@@ -0,0 +1,46 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Netscape 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/NPL/
+ *
+ * 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.org code.
+ *
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2000 Netscape Communications Corporation. All
+ * Rights Reserved.
+ *
+ * Contributor(s): 
+ */
+
+/**
+ * Interface for exposing scriptable plugin methods to JavaScript via
+ * XPConnect.
+ */
+
+#include "nsISupports.idl"
+
+[uuid(f1a12bba-1dd1-11b2-a95f-cdc118605e92)]
+interface nsIScriptablePlugin : nsISupports
+{
+    /**
+     * The object to be wrapped and exposed to JavaScript.  It should
+     * be an XPCOM object, and it can be the same object as the
+     * plugin.
+     */
+    readonly attribute nsQIResult scriptablePeer;
+
+    /**
+     * The interface that XPConnect should use when exposing the peer
+     * object to JavaScript.  All scriptable methods on the interface
+     * will be available to JavaScript.
+     */
+    readonly attribute nsIIDPtr scriptableInterface;
+};
diff --git a/modules/plugin/public/nsIScriptablePlugin.idl b/modules/plugin/public/nsIScriptablePlugin.idl
new file mode 100644
index 000000000000..a753fede26f6
--- /dev/null
+++ b/modules/plugin/public/nsIScriptablePlugin.idl
@@ -0,0 +1,46 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Netscape 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/NPL/
+ *
+ * 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.org code.
+ *
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 2000 Netscape Communications Corporation. All
+ * Rights Reserved.
+ *
+ * Contributor(s): 
+ */
+
+/**
+ * Interface for exposing scriptable plugin methods to JavaScript via
+ * XPConnect.
+ */
+
+#include "nsISupports.idl"
+
+[uuid(f1a12bba-1dd1-11b2-a95f-cdc118605e92)]
+interface nsIScriptablePlugin : nsISupports
+{
+    /**
+     * The object to be wrapped and exposed to JavaScript.  It should
+     * be an XPCOM object, and it can be the same object as the
+     * plugin.
+     */
+    readonly attribute nsQIResult scriptablePeer;
+
+    /**
+     * The interface that XPConnect should use when exposing the peer
+     * object to JavaScript.  All scriptable methods on the interface
+     * will be available to JavaScript.
+     */
+    readonly attribute nsIIDPtr scriptableInterface;
+};