diff --git a/install/conf/ipa.conf b/install/conf/ipa.conf
index 01bf9a4f9..d41f9eb06 100644
--- a/install/conf/ipa.conf
+++ b/install/conf/ipa.conf
@@ -27,10 +27,6 @@ KeepAliveTimeout 30
 
 # ipa-rewrite.conf is loaded separately
 
-# This is required so the auto-configuration works with Firefox 2+
-AddType application/java-archive        jar
-AddType application/x-xpinstall         xpi
-
 # Proper header for .tff fonts
 AddType application/x-font-ttf          ttf