Rated 5 out of 5 stars

Από τον/την Χρήστης Firefox 5707a8 στις Νοέμ. 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.

από τον Itagaki Fumihiko (δημιουργός) στις Νοέμ. 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.