Счетчик писем Mail

Mail message counter The counter now shows new messages from all your mailboxes. Add your accounts to see the total number of new messages directly in your browser, to the right of the address bar. Click the mail icon to see which mailboxes received new messages. You can open your inboxes directly from the browser, so you won't miss urgent or important messages. -- Privacy policy https://help.mail.ru/legal/all-ext-privacy