Rated 3 out of 5 stars

by Firefox user cab87a on Jan. 18, 2020 ·

It says it works with Message Filters, but when i choose the 'Mailbox Alert', it is BLANK on the right side, so you cannot choose the alert.

This review is for a previous version of the add-on (0.23.1). 

by Tjebbe (Developer) on Jan. 21, 2020 ·

Yeah, that was (I hope) the last thing that broke with the big Thunderbird changes, and the hardest one to get working again. I finally found a way to fix it, and it should now work with version 0.24.