diff --git a/ui (gen4)/lib/widget/browse2.js b/ui (gen4)/lib/widget/browse2.js
index 88948601..d58567be 100755
--- a/ui (gen4)/lib/widget/browse2.js	
+++ b/ui (gen4)/lib/widget/browse2.js	
@@ -322,7 +322,13 @@ var BaseBrowserPrototype = {
 			// item id...
 			// XXX revise id generation...
 			// XXX these should include the path... (???)
-			var key = opts.id || JSON.stringify(value)
+			var key = opts.id 
+				// value is a browser -> generate an unique id...
+				// XXX identify via API...
+				// XXX do a better id
+				|| (value instanceof Browser 
+					&& Date.now())
+				|| JSON.stringify(value)
 
 			// no duplicate keys...
 			if(key in new_index){