Welcome to Firefox for Android Add-ons.
Add extra features and styles to make Firefox for Android your own.
CloseReview for Google Tasks Sync by RainerP
Rated 4 out of 5 stars
Since the Last two updates from Thunderbird the Add-On did not sync any more.
It would be great when the developer can fix that bug!
Thanks Rainer
I just tried on 45.5 on Windows and Linux and it worked in both cases. Try creating a new Thunderbird profile and installing the add-on there.
To create your own collections, you must have a Mozilla Add-ons account.