diff --git a/mozilla/rdf/datasource/public/MANIFEST b/mozilla/rdf/datasource/public/MANIFEST
index f282cd50b3b..55dde056676 100644
--- a/mozilla/rdf/datasource/public/MANIFEST
+++ b/mozilla/rdf/datasource/public/MANIFEST
@@ -1,4 +1,5 @@
 nsIBookmarkDataSource.h
+nsILocalStore.h
 nsIHistoryDataSource.h
 nsIRDFFileSystem.h
 nsIRDFFind.h
diff --git a/mozilla/rdf/datasource/public/Makefile.in b/mozilla/rdf/datasource/public/Makefile.in
index a526c70490c..d9a40dd73d0 100644
--- a/mozilla/rdf/datasource/public/Makefile.in
+++ b/mozilla/rdf/datasource/public/Makefile.in
@@ -26,6 +26,7 @@ MODULE = rdf
 
 EXPORTS =				\
 	nsIBookmarkDataSource.h		\
+	nsILocalStore.h			\
 	nsIHistoryDataSource.h		\
 	nsIRDFFileSystem.h		\
 	nsIRDFFind.h			\
diff --git a/mozilla/rdf/datasource/public/makefile.win b/mozilla/rdf/datasource/public/makefile.win
index 10263108210..62dd4b7f0d5 100644
--- a/mozilla/rdf/datasource/public/makefile.win
+++ b/mozilla/rdf/datasource/public/makefile.win
@@ -22,6 +22,7 @@ DEPTH=..\..\..
 
 EXPORTS	= \
         nsIBookmarkDataSource.h	\
+        nsILocalStore.h         \
         nsIHistoryDataSource.h  \
         nsIRDFFileSystem.h      \
         nsIRDFFind.h		\
diff --git a/mozilla/rdf/datasource/public/nsILocalStore.h b/mozilla/rdf/datasource/public/nsILocalStore.h
new file mode 100644
index 00000000000..f25efd068b2
--- /dev/null
+++ b/mozilla/rdf/datasource/public/nsILocalStore.h
@@ -0,0 +1,39 @@
+/* -*- 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 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+#ifndef nsILocalStore_h__
+#define nsILocalStore_h__
+
+#include "nsISupports.h"
+
+// {DF71C6F1-EC53-11d2-BDCA-000064657374}
+#define NS_ILOCALSTORE_IID \
+{ 0xdf71c6f1, 0xec53, 0x11d2, { 0xbd, 0xca, 0x0, 0x0, 0x64, 0x65, 0x73, 0x74 } }
+
+class nsILocalStore : public nsISupports
+{
+public:
+    static const nsIID& GetIID() { static nsIID iid = NS_ILOCALSTORE_IID; return iid; }
+};
+
+
+PR_EXTERN(nsresult)
+NS_NewLocalStore(nsILocalStore** aResult);
+
+
+#endif // nsILocalStore_h__