Rated 4 out of 5 stars

Yes, simple! But too simple! Do what it is meant to do, but a good looking UI doesn't sounds bad at all. Instead of windowed notes, you could make it popup-like notes. In practice, blend it to firefox and make it more stylish. Finally, I think you could make customizations resources much more simple than they are right now! Waiting for updates, so I can give ya 5 stars.

This review is for a previous version of the add-on (0.6.0.4).