diff --git a/modules/libutil/public/nsITimeRecorder.idl b/modules/libutil/public/nsITimeRecorder.idl
index 1a58a0a51344..35f2a9230fca 100644
--- a/modules/libutil/public/nsITimeRecorder.idl
+++ b/modules/libutil/public/nsITimeRecorder.idl
@@ -29,9 +29,6 @@
 [scriptable, uuid(0e5f5cb6-6d29-11d3-aef7-00108300ff91)]
 interface nsITimeRecorder : nsISupports
 {
-  void EnableTimer( in PRUint32 aTimerID );
-  void DisableTimer( in PRUint32 aTimerID );
-  void IsTimerEnabled(out PRBool aEnabled, in PRUint32 aTimerID);
   void ResetTimer(in PRUint32 aTimerID);
   void StartTimer(in PRUint32 aTimerID);
   void StopTimer(in PRUint32 aTimerID);