I said about notification "ICON" on taskbar

What happens if you change the length of time of the alert display?

'Menu icon' > 'Options' > 'Options' > 'General' tab when new messages arrive.....click on 'Customise..' button 'show new mail alert for xx seconds.' Reduce the number of seconds click on OK

click on OK

thx for reply :)

Ah,no good. changed 10sec to 1sec,but icon still there...

I noticed one more. when shutdown thunderbird while displaying this icon, unbelievably this icon is "STILL" there...WTF... then moved mouse pointer over icon, ICON DISAPPEARED :|

Windows 10 64bit (latest update)

TOO BAD...help or fix this bug :(((((

Do you not think that the failure to update a taskbar/notification area/systray element might be a Windows bug? It clearly "knows" the right status, so has been told by Thunderbird, but hasn't got around to updating the display.

I find that Windows, when I do have to use it, is quite poor at keeping the user informed on status and progress.

I frequently find that notifications from other programs misbehave in just the same way. They don't update until "touched" by hovering.

I can't understand this problem yet. because sometimes clicking this "STILL ALIVE" icon after reading all arrived mails, display "incoming mail to ***@****" <-here my country language(not ENG). so I probably think THUNDERBIRD occurs this problem..

umm