Rated 5 out of 5 stars

I posted Aug 5th that the add-on had stopped working - glad to report that I just uninstalled it, rebooted, turned round three times, re-installed it and it's working again.
I'm on Thunderbird 52.4.0 (64-bit) running on Linux Mint 17. I
Whatever fixed it?? Thanks !!

This review is for a previous version of the add-on (1.1.1).  This user has other reviews of this add-on.