diff --git a/mozilla/xpfe/communicator/resources/content/manifest.rdf b/mozilla/xpfe/communicator/resources/content/manifest.rdf
index 3032ea869f6..68a1f20ecf0 100644
--- a/mozilla/xpfe/communicator/resources/content/manifest.rdf
+++ b/mozilla/xpfe/communicator/resources/content/manifest.rdf
@@ -25,4 +25,22 @@
         chrome:author="mozilla.org"
         chrome:name="navigator">
   </RDF:Description>
+
+  <!-- overlay information -->
+  <RDF:Seq about="urn:mozilla:overlays">
+    <RDF:li resource="chrome://communicator/content/pref/preftree.xul"/>
+    <RDF:li resource="chrome://communicator/content/pref/pref-appearance.xul"/>
+  </RDF:Seq>
+
+  <!-- editor preferences branches -->
+  <RDF:Seq about="chrome://communicator/content/pref/preftree.xul">
+    <RDF:li>chrome://editor/content/editorPrefsOverlay.xul</RDF:li>
+  </RDF:Seq>
+
+  <!-- editor startup pref -->
+  <RDF:Seq about="chrome://communicator/content/pref/pref-appearance.xul">
+    <RDF:li>chrome://editor/content/editorPrefsOverlay.xul</RDF:li>
+  </RDF:Seq>
+
 </RDF:RDF>
+