Puntuado con 1 de 5 estrellas

No, I am sorry, you're not right. I have double checked with fresh install and surely visible panel, still does nothing. In fact it does not matter if plugin is installed or not. Absolutely no effect at all.

Este usuario tiene una valoración anterior de este complemento.

What kind of OS do you use ? I tested addon on Windows and Linux. Do you see in Options addon number of saved messages or there is only zero ? Of course, the value indicates how many messages have been marked/displayed since the add-on was installed

Puntuado con 1 de 5 estrellas

Version 1.2 it is not functional in the version 115.16.2 (64bit). Version 2.0 cannot be installed because it is said to be incompatible with this version. So a stalemate.

Do you have enabled Message Pane (F8) ? Addon saves selected message after displaying its content, so the Message Pane should be visible.
Version 2.0 is for the current version of Thunderbird, which is version 128.

Puntuado con 1 de 5 estrellas

Can you give us an easier way to contact you? It doesn't work in Unified folder mode.

Esta valoración es de una versión anterior del complemento (1.1).  Este usuario tiene una valoración anterior de este complemento.

You have right. I don't use Unified Folders so I don't check this. I will try to find the solution. Thank you for your attention.

Puntuado con 5 de 5 estrellas

Good idea, it works well on the version 115

Esta valoración es de una versión anterior del complemento (1.1). 

Puntuado con 2 de 5 estrellas

I give this 2* because of the premise -- it is a good idea. However, it simply does nothing that I can see.

Esta valoración es de una versión anterior del complemento (1.0). 

Puntuado con 5 de 5 estrellas

Very practical and functional module with Thunderbird 115 ! Thank you for your work ! :-)

Esta valoración es de una versión anterior del complemento (1.0).