Rated 4 out of 5 stars

problem with lighting in the version of 12/08/2019 (calendar synchronization) and thunderbird 60.8.0 (32 bits). Windows 10 pro ver. 1903, build 18362.267.
The thunderbird program hangs, after disabling lighting, it works fine.

This review is for a previous version of the add-on (6.2.5).