Index: wp-includes/js/media-views.js
===================================================================
--- wp-includes/js/media-views.js	(revision 23027)
+++ wp-includes/js/media-views.js	(working copy)
@@ -1903,7 +1903,7 @@
 			if ( ! this.views.attached )
 				this.attach();
 
-			this.$el.show().focus();
+			this.$el.show();
 			return this.propagate('open');
 		},