--- a/browser/confvars.sh
+++ b/browser/confvars.sh
@@ -42,10 +42,10 @@ MOZ_PHOENIX=1
 
 MOZ_ENABLE_LIBXUL=1
 MOZ_PLACES=1
 # always enabled for form history
 MOZ_MORKREADER=1
 MOZ_SAFE_BROWSING=1
 MOZ_APP_VERSION=$FIREFOX_VERSION
 MOZ_NO_XPCOM_OBSOLETE=1
-MOZ_EXTENSIONS_DEFAULT=" xml-rpc inspector gnomevfs reporter"
+MOZ_EXTENSIONS_DEFAULT=" inspector gnomevfs reporter"
 # MOZ_APP_DISPLAYNAME will be set by branding/configure.sh