diff --git a/platform/commonUI/browse/src/BrowseObjectController.js b/platform/commonUI/browse/src/BrowseObjectController.js
index 2ba4c08d87..deb5910199 100644
--- a/platform/commonUI/browse/src/BrowseObjectController.js
+++ b/platform/commonUI/browse/src/BrowseObjectController.js
@@ -65,17 +65,10 @@ define(
                 }
             }
 
-            //// If there is a defined opener, assume that the window was opened
-            ////   by choosing 'Open in a new tab'
-            //if ($window.opener) {
-            //    // The desired default for this is to have a closed left pane
-            //    $scope.ngModel.leftPane = false;
-            //} else {
-            //    // Otherwise, start the application with an open left pane
-            //    $scope.ngModel.leftPane = true;
-            //}
-
+            // If there is a defined opener or user is on mobile
+            // openned window will start with tree pane closed
             $scope.ngModel.leftPane = ($window.opener || agentService.isMobile(navigator.userAgent)) ? false : true;
+
             // The object inspector by default always starts closed
             $scope.ngModel.rightPane = false;