Rated 5 out of 5 stars

Excellent - works with 68.3.1 now too (must download from developers website because Mozilla staff are, by the looks of it, exceptionally slow at reviewing and approving plugins. A shame Mozilla seem unwilling to provide backwards compatibility necessitating developers to continually have to release updates when Thunderbird updates break things,

This review is for a previous version of the add-on (1.2.5.2).  This user has a previous review of this add-on.