Rated 3 out of 5 stars
The "choose folder" option is broken. It would be nice, if this cold be fixed, because otherwise the "Unsorted Bookmarks" get cluttered up with Net Notes Bookmarks.
Modifiying the shortcut needs a restart to make the changes have an effect. The default shortcut is "Cmd + N" is nonsense, because it opens a new FF window.
But apart from that, it's a nice and useful addon. 3 stars for now, 5 stars when those issues get fixed.