I have Avast Pro 8.0.1483 and the chrome tab doesn’t show up in the browser clean up utility. I know they fixed this with an update to the standalone browser clean up utility version.
Will this be fixed in the Avast Pro version?
hey and welcome to the forum. suggest you try a repair of avast and see if that help you out.
start- control panel-add/remove program scroll down to avast hit uninstall. then hit the option repair.
did it solve your problem?
if not try a clean installation of avast.
This is an ongoing issue. If you would like start a topic here https://feedback.avast.com/
Click “login”>click “single sign-on” 
I tried the repair option, clean install of avast and Chrome. Chrome is still not showing up in the browser clean up. They fixed this in the standalone version. It should work with my Pro version of Avast. 