Try the addon, 'deselect on delete tb78'. Let me know. :)

It is even worse. After deleting the current email, it goes to the next one, marks as read, and then deselects it.

This addon stopped working a few years ago already.

Which part do you object to, the selecting of the next message or marking it read? If the latter, the setting found at <Settings | General | Reading & Display | Automatically mark messages as read> should cover it. If the former, well, something has to be selected after the current message is deleted, right?

I am puzzled why the addon isn't working, as it works on my 140.10.

@ Lin: What would be dream setting as follow: you select an email and automatically mark it as read as default setting. Then when you deleted it, it does not go to the next email and mark it as read. Instead, after the deleting the current email, it just stay as it is without selecting anything. With the old gold addon 'deselect on delete tb78', it was the case for a while. Any way to get something similar with settings?

@ david: Addon you mentioned was working for me a few years ago last time. I remember doing an update and it stopped working for me. Since then I have the same issue.

The setting can be found at General - Reading & Display The option is "Close message window/tab on move or delete".

"Close message window/tab on move or delete" does not work either for this purpose.