Rated 5 out of 5 stars

This add-on is completely safe; I audited the code on 5th November 2021, and there is nothing that shouldn't be there. If you want to do the same, then search for it at addons.thunderbird.net, download the .xpi file, extract it as an archive, and inspect the .js and .json files. (The entire addon is only 5kB.)

It works exactly as advertised; two new column types become available - sender and recipient addresses. This should be built into Thunderbird; it is inexplicable that it isn't.

Thank you for writing this add-on.

(Note to developer - it may increase trust if you reduce the requested permissions.)

This review is for a previous version of the add-on (1.0.2).