Rated 5 out of 5 stars

by SPL on Jan. 8, 2019 ·

Works great for me on Thunderbird 60.4.0 (32-bit) on Windows 10. Thanks!

I've reduced my Thunderbird hard drive footprint by about half due to an enormous number of duplicates (I'm not sure what is causing these duplicates to occur. There were a huge number in my archive from 2018, much fewer in previous years).

This review is for a previous version of the add-on (0.3.17b1).