XNote

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készítette: Martijn, jún. 21, 2008 · közvetlen hivatkozás

It's a great extension for keeping notes associated with specific messages -- especially the user interface is very convivial: post-it notes which can be placed anywhere on the screen (and which reappear anytime that same message is selected).
Only thing I'd like is that it would show somehow when a note has got the focus.