Puntuado con 5 de 5 estrellas

No longer needed by me, but very many thanks to the developer who has tried, and mostly succeeded, to keep track of changing applications and APIs for many years.
Hats off to Philipp!

Esta valoración es de una versión anterior del complemento (115.0.2). 

Puntuado con 1 de 5 estrellas

As noted by others, unreliable with google calendar. No longer needed if you just want to sync events, as Thunderbird's "add remote calendar" works well and fast.

Esta valoración es de una versión anterior del complemento (115.0.2).