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CloseReview for Header Tools Improved by Desert Catmom
Rated 5 out of 5 stars
Love this add-on. I organize my emails by changing the subject line. For a while this add-on did not work. Thank you to the developer for fixing it. Very simple use and works well.
This review is for a previous version of the add-on (2.3).To create your own collections, you must have a Mozilla Add-ons account.