diff --git a/src/drawer.js b/src/drawer.js
index 0815ee50..ff658aaf 100644
--- a/src/drawer.js
+++ b/src/drawer.js
@@ -633,8 +633,6 @@ $.Drawer.prototype = {
 
     // private
     _updateImageSmoothingEnabled: function(context){
-        context.mozImageSmoothingEnabled = this._imageSmoothingEnabled;
-        context.webkitImageSmoothingEnabled = this._imageSmoothingEnabled;
         context.msImageSmoothingEnabled = this._imageSmoothingEnabled;
         context.imageSmoothingEnabled = this._imageSmoothingEnabled;
     },