Avast Secure Browser crashes every few minutes

My browser crashes every few minutes and exits out of all my tabs. The tabs are able to be recovered but this is insanely annoying, and happens a lot. I have uninstalled and reinstalled the browser with no change.

Have you tried a totally clean installation of the Secure Browser?

Secure Browser Removal Tool https://download.avastbrowser.com/avast_secure_browser_uninstall.exe

Clean install of the Secure Browser:
Maybe it’s time for a clean install of the Secure Browser
Download the installer from here, https://www.avast.com/en-us/secure-browser
Download the Secure Browser Removal tool from here, https://download.avastbrowser.com/avast_secure_browser_uninstall.exe
Save your Bookmarks via the Book Marks Manager if you have custom bookmarks so you can import them when you re-install.
Uninstall Secure Browser via Programs and Features - Reboot
Run the removal tool, reboot, run the installer import your favorites if you saved them.
A video to help with the installation: https://youtu.be/r_VLA0HMLQM
Report back if that’s solved the problem or not.
Avast has offered a separate tool to totally remove the Secure Browser if the above instructions don’t work.
You can find that tool here, https://forum.avast.com/index.php?topic=230288.msg1531315#msg1531315