Rated 2 out of 5 stars
Used the addon (github/nightly) for a long time, but since I updated to TB 52 it's not working anymore :(This review is for a previous version of the add-on (0.2.2).
Rated 4 out of 5 stars
Thunderbird 24 support would be great, dev version seems to work.
It's not really obvious that it's only possible to have one filter script active at a time.