Rated 5 out of 5 stars

le SangPhan87 ar Márta 22, 2024 ·

Next Unread Group not be installed because it is not compatible with TB 115.8.1 (latest version). Please update this add on.

Léirmheas ar leagan níos sine den bhreiseán seo (1.2). 

le Dillinger (Forbróir) ar Márta 22, 2024 ·

It should currently work with Thunderbird up to 125.*

You can try to update or install it from within Thunderbird:
Go to the Add-ons Manager and search for Next Unread Group.