Rated 4 out of 5 stars

yazan: mattiasdh tarih: Mayıs 19, 2023 ·

This + color-tagging the labelled mails would be outright fantastic! For example Fastmail is offering the same concept: https://www.fastmail.com/blog/fastmail-labels/
There's maybe a way to automatically create and apply the necessary tags, to mimick Gmail/Fastmail's Labels behaviour..! Could you please generalise the Labels add-on for other accounts too?

This review is for a previous version of the add-on (0.2). 

yazan: Łukasz Nojek (Geliştirici) tarih: Mayıs 19, 2023 ·

Thanks for your review! This extension does not allow adding own tags, it only reflects the tags already set in Gmail.

There is a generic tagging functionality built into Thunderbird: https://support.mozilla.org/en-US/kb/message-tags, maybe you are looking for that?