Wurdearring: 1 fan de 5 stjerren

troch Firefox-brûker 875dd2 op Feb. 5, 2020 · permalink

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.