This is a forum for helping with Thunderbird email client program queries.

How your computer works in relation to sound and volumn controls has nothing to do with Thunderbird. This is not the correct forum for such questions.

Hi

Just a quick note to say that I have edited this question for your privacy and security by obscuring your email address.

Hi Ernest, since you already know about that little sound icon on the Windows "notification area":

right-click it and choose Open Volume Mixer. Here's you see the different audio output levels for each application that is currently sending sound to Windows and you can adjust those individually.

Hope that helps.

And why aren't you using Firefox? ;-) https://www.mozilla.org/firefox/