First, is FFox still installing extensions after finding Chrome would not work?
If FFox is still working, try this uninstall to remove Chrome completely:
1. Go to Settings, Apps, Installed Apps, scroll down to find Chrome, ... Uninstall.
2. Go to this location: C:\Users\YOUNAME\AppData\Local\Google\
3. Go to this location: C:\Program Files (x86)\Google\ and delete any Chrome folder you find
4. Also check c:\Program Files\Google\ and delete any Chrome folder you find
Reboot, Reinstall Chrome, try again.