Developer reply by Marco Zanon
Rated 5 out of 5 stars
Thanks for the addon. Works well with Thunderbird 91 and 102. Setting up the Google API was relatively straightforward, but it appears after it went public there is no way to edit it. I enabled full access before seeing the warning about setting read only, but I am only syncing calendars and so far no issues.
This review is for a previous version of the add-on (0.5.1).Thanks for Your review.
To change any option, just disable the account, change the option, then re-enable the account.
However, Google-4-TbSync only synchronizes contacts, no calendars.
MZ
To create your own collections, you must have a Mozilla Add-ons account.