Review for Mark All Read:WE by hollyfields2
Rated 4 out of 5 stars
Very useful addon. Works perfectly on Thunderbird 78.3.2 in Windows 7. Strangely though on Thunderbird 78.3.2 in Windows 10 doesn't work at all.
This review is for a previous version of the add-on (1.1). This user has other reviews of this add-on.To create your own collections, you must have a Mozilla Add-ons account.