Avast Password login not working from Firefox toolbar, Avast Premium Security

Avast Password login not working from Firefox toolbar, (key with lock under it) Dialog opens but clicking on Unlock icon does not function.
Avast Premium Security, Privacy, Passwords login screen path works OK.
Lock Avast Passwords works from toolbar dialog.
Has worked fine for couple of years from Firefox toolbar.

Hi, see: https://forum.avast.com/index.php?topic=305808.0