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CloseReview for Message Notes by JohannesK
Rated 5 out of 5 stars
A great add-on, but unfortunately there is no active development anymore. But you find a extended version here: http://forums.mozillazine.org/viewtopic.php?p=4276735#p4276735 See the last page of this topic, if the link there ( http://www.odois.org/temp/lulis/msgnotes-0.1.8-tb.xpi ) is not working anymore.
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