T'Bird 102 and google calendar

I'm running 102.13.0 and would like to use it primarily for managing a set of google calendars and task lists—I don't need it for mail.

I installed the provider-for-google-calendar addon and successfully authenticated with my google account, and was able to interact with the calendar & tasks as expected. But every time I restart TB, I have to re-authenticate with google again. I did make sure the "Don't ask again on this device" was checked.

I'm not certain if this is a portable-specific issue, but I couldn't find anything about this in the general TB forums, and I believe this add-on is specifically to handle OAuth that google now prefer.

If this is expected to work, I can install the non-portable version of TB to test alongside.