דירוג 1 מתוך 5 כוכבים

מאת משתמש Firefox‏ 875dd2 בתאריך פבר' 5, 2020 · קישור קבוע

This add-on is listed with my installed add-ons, but there is no evidence of it in Thunderbird and no way to use it. There is supposed to be an option for it under Tools, but there is not.
Tried contacting the developer but have received no response.