Puntuado con 5 de 5 estrellas

This is a wonderful addon. But, with the latest Windows 10 updates, the latest Thunderbird (78.9.1) and the latest BorderColors D (2021.4.1), I can no longer find a way to get to the BorderColors D settings. There is no line in Thunderbird's Tools menu for Addon Settings.

Esta valoración es de una versión anterior del complemento (2021.4.1). 

Hello there, glad to read that you find the add-on useful!

I'm not sure which Thunderbird version introduced the change, but most add-on options are now on the Add-ons tab. BorderColors-D doesn't do anything different, so they should appear there as well.

See this page for directions:
https://support.mozilla.org/en-US/kb/thunderbird-add-ons-frequently-asked-questions#w_how-do-i-configure-add-ons