diff --git a/string/public/nsFragmentedString.h b/string/public/nsFragmentedString.h
new file mode 100644
index 000000000000..b0997162b5b9
--- /dev/null
+++ b/string/public/nsFragmentedString.h
@@ -0,0 +1,42 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/*
+ * 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) 1998 Netscape Communications Corporation. All
+ * Rights Reserved.
+ *
+ * Contributor(s):
+ *   Scott Collins <scc@netscape.com>
+ */
+
+#ifndef _nsFragmentedString_h__
+#define _nsFragmentedString_h__
+
+  // WORK IN PROGRESS
+
+#include "nsAWritableString.h"
+
+template <class CharT>
+class basic_nsFragmentedString
+      : public basic_nsAWritableString<CharT>
+    /*
+      ...
+    */
+  {
+    public:
+      // ...
+  };
+
+#endif // !defined(_nsFragmentedStrign_h__)
diff --git a/xpcom/ds/nsFragmentedString.h b/xpcom/ds/nsFragmentedString.h
new file mode 100644
index 000000000000..b0997162b5b9
--- /dev/null
+++ b/xpcom/ds/nsFragmentedString.h
@@ -0,0 +1,42 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/*
+ * 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) 1998 Netscape Communications Corporation. All
+ * Rights Reserved.
+ *
+ * Contributor(s):
+ *   Scott Collins <scc@netscape.com>
+ */
+
+#ifndef _nsFragmentedString_h__
+#define _nsFragmentedString_h__
+
+  // WORK IN PROGRESS
+
+#include "nsAWritableString.h"
+
+template <class CharT>
+class basic_nsFragmentedString
+      : public basic_nsAWritableString<CharT>
+    /*
+      ...
+    */
+  {
+    public:
+      // ...
+  };
+
+#endif // !defined(_nsFragmentedStrign_h__)
diff --git a/xpcom/string/public/nsFragmentedString.h b/xpcom/string/public/nsFragmentedString.h
new file mode 100644
index 000000000000..b0997162b5b9
--- /dev/null
+++ b/xpcom/string/public/nsFragmentedString.h
@@ -0,0 +1,42 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/*
+ * 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) 1998 Netscape Communications Corporation. All
+ * Rights Reserved.
+ *
+ * Contributor(s):
+ *   Scott Collins <scc@netscape.com>
+ */
+
+#ifndef _nsFragmentedString_h__
+#define _nsFragmentedString_h__
+
+  // WORK IN PROGRESS
+
+#include "nsAWritableString.h"
+
+template <class CharT>
+class basic_nsFragmentedString
+      : public basic_nsAWritableString<CharT>
+    /*
+      ...
+    */
+  {
+    public:
+      // ...
+  };
+
+#endif // !defined(_nsFragmentedStrign_h__)