Hi bob3160,
That is bad and a Microsoft restrictive policy. Not very Avast friendly.
Does that also mean you cannot have it as an extension when you make the Google Chrome or firefox app your default browser via Settings- System- Standard-apps -When asked whether you like these as default either set Google Chrome or firefox as your default browser before MS sends you to the Standard App Screen again. Microsoft sort of sets a preference to Edge.
Is Windows 10 really that restrictive to user's choice that you cannot install apps/extensions from the Google Webstore
then it is ad bad as Google on Google Android where you cannot escape their Admob ads?
polonus