Review for New Account Types by Ralondo
Rated 5 out of 5 stars
Did work perfectly - until now, when I upgraded to Thunderbird 13.0.1
EDIT: Great! The update fixes the problem.
Reaction of developer from bugreport to fix: under 24h, that's fantastic! Thanks for the good work.
I've posted an update to this at https://addons.mozilla.org/en-US/thunderbird/addon/new-account-types/versions/?page=1#version-14.1 - but standard AMO policy is to disable new binary addons until they have been reviewed, so this might not work until after the review.
To create your own collections, you must have a Mozilla Add-ons account.