Hi David and others, the + before a method means that this method is an extension (i.e., defined in another package). But there is not always a + before method extension. Look at Object>>isConflict, method defined in Monticello I suggest that all future questions related to the browser should be posted in the pharo mailing list. David, are you ok with this? I do not know whether you have a mailing list or not (I hope not actually, I am subscribed to too many lists :-) Cheers, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.