Rated 5 out of 5 stars

by Firefox user 5707a8 on Nov. 15, 2023 ·

Great addon, sad it doesn't work for new versions, BUT IS NOT NECESSARY ANYMORE. You can sort the folders by going to Settings -> Account Settings and dragging the accounts from the left panel.

by Itagaki Fumihiko (Developer) on Nov. 16, 2023 ·

It is not the reordering of folders, but the reordering of accounts. It has been possible since Thunderbird 91. However, the ability to sort folders is not yet available. It is currently under development.