diff --git a/mozilla/modules/libpref/src/Makefile.in b/mozilla/modules/libpref/src/Makefile.in
index 2541adbdc1f..2522541a23b 100644
--- a/mozilla/modules/libpref/src/Makefile.in
+++ b/mozilla/modules/libpref/src/Makefile.in
@@ -40,8 +40,6 @@ LIBXUL_LIBRARY = 1
 REQUIRES	= xpcom \
 		  xpcom_obsolete \
 		  string \
-		  js \
-		  xpconnect \
 		  intl \
 		  necko \
 		  $(NULL)
diff --git a/mozilla/modules/libpref/src/nsPrefService.cpp b/mozilla/modules/libpref/src/nsPrefService.cpp
index 4cf0d1c3450..d894c108fe6 100644
--- a/mozilla/modules/libpref/src/nsPrefService.cpp
+++ b/mozilla/modules/libpref/src/nsPrefService.cpp
@@ -37,7 +37,6 @@
  * ***** END LICENSE BLOCK ***** */
 
 #include "nsPrefService.h"
-#include "jsapi.h"
 #include "nsAppDirectoryServiceDefs.h"
 #include "nsDirectoryServiceDefs.h"
 #include "nsICategoryManager.h"
@@ -59,9 +58,6 @@
 #include "prefread.h"
 #include "prefapi_private_data.h"
 
-// supporting PREF_Init()
-#include "nsIJSRuntimeService.h"
-
 #include "nsITimelineService.h"
 
 #ifdef MOZ_PROFILESHARING