How to set up notifications for incoming emails in Mozilla Thunderbird?

Question

Email

Hello! How to set notifications for incoming emails in Mozilla Thunderbird? Example: there is a "new folder" folder in the "Inbox", the icon "(1)" in this "new folder" appears only after I check this folder, that is, after I click on it. How to set it up so that it would be automatic?
Thank you!

Answer 1

Enable checking all folders for new mail:
This is done in the settings editor, which can be called like this: Settings-> Additional-> Settings Editor