Hi philiptaylor4,
can you please tell us more so we can identify the problem?
Your Diagnostic information will help us too:
1. Open the browser and click on the menu icon (3 dots in upright corner)
2. Click on “Help and About Avast Secure Browser” and then “About Avast Secure Browser”
3. Click on “Diagnostic Information” (this will open a pop-up window)
4. Click the “COPY TO CLIPBOARD” button to capture the information and paste it here.
Thank you