Bug 594821 - delay initial jump list update. r=dao, a=beltzner

browser/components/wintaskbar/WindowsJumpLists.jsm

@@ -205,9 +205,6 @@ var WinTaskbarJumpList =
 
     // jump list refresh timer
     this._initTimer();
-
-    // build the list
-    this.update();
   },
 
   update: function WTBJL_update() {