Rated 4 out of 5 stars

Love this plug-in and depend on it. But it no longer syncs for me after the v15 upgrade. Bug report has been filed, so hopefully it's back on its feet soon!

This review is for a previous version of the add-on (0.8.38). 

Hi tinnickels, yep, something has changed in TB15 which has broken the addon. Looking at it now.

Thunderbird recently changed its release schedule from a couple of times a year to every 6 weeks. It presents a huge challenge for me in terms of staying ahead of the game. Sorry!