diff --git a/configure.in b/configure.in
index eacd0586c0d2..94b696ace1d7 100644
--- a/configure.in
+++ b/configure.in
@@ -4319,7 +4319,8 @@ suite)
   MOZ_PROFILESHARING=
   MOZ_APP_VERSION=$SEAMONKEY_VERSION
   if test "$MOZ_XUL_APP"; then
-    MOZ_EXTENSIONS_DEFAULT=" wallet xml-rpc p3p venkman inspector irc typeaheadfind gnomevfs sroaming reporter"
+    MOZ_NO_XPCOM_OBSOLETE=1
+    MOZ_EXTENSIONS_DEFAULT=" wallet xml-rpc p3p venkman inspector irc typeaheadfind gnomevfs reporter"
   else
     MOZ_EXTENSIONS_DEFAULT=" wallet xml-rpc help p3p venkman inspector irc typeaheadfind gnomevfs sroaming reporter"
   fi