I have 2 email addresses for my Thunderbird email client. Total Unread emails show as a number in a red circle in my taskbar. Even after I have read all new emails in each account I must click on each INBOX icon to get that "unread" number to go away. I have had this for a long time. I use auto update so I am using the latest version 102.5. Thanks for your assistance, Sid Shusterman