Avast webshield blocks Google and Youtube on firefox in windows 10

As stated in subject, only by disabling the webshield can I access these websites with firefox

No problems with either IE or Edge… What version of FF do you have

Disabling HTTPS scanning helps

Same issue upon upgrade to Win 10. This solution seems to work:
Active Protection | Web Shield | Customize | Exclusions | URLs to exclude: | Add “google.com” | OK

This is an Avast issue with FF v39.0 and Windows 10, access to any secure website is blocked until you turn off HTTPS scanning in
Settings-Active Protection-Web Shield. Avast needs to fix this quickly.