Mailbox Alert

Rated 5 out of 5 stars

yazan: Stephen tarih: Eki. 7, 2020 · kalıcı bağlantı

It's a very versatile addon. I use it together with filters to notify me about emails from particular senders, notify about emails that are not spam and therefore merit some attention and other emails.
It was a pleasant surprise to see that it has been updated.