Benvingut a complements de Thunderbird.
Add extra features and styles to make Thunderbird your own.
TancaComentari del Open Google Calendar per Doug Royer
Rated 5 out of 5 stars
Just installed it.
It is exactly what I was looking for.
Per crear les vostres pròpies col·leccions, heu de tenir un compte al Mozilla Add-ons.