Rated 5 out of 5 stars

I have used this add-on for more than 10 years I believe. I "pinned" the Thunderbird upgrades on my Debian Testing system a few years ago because too much seemed to be changing! Recently I "unpinned" everything and started using Thunderbird 91. I was concerned that many of my add-ons would fail at this point, but was delighted to find FiltaQuilla works even better than before!

I have a lot of filters for several IMAP and POP accounts. I assist with running a podcast and several components of the system behind it use email notifications. In particular I receive episode comments this way, and can easily place them in a directory for moderation and processing.

This add-on has some great features that I use all the time.

This review is for a previous version of the add-on (3.4).