Xfinity webmail 'resets' and minimizes email being composed using Chrome

Hi there. 

mojave 10.14.4.  Chrome Version 83.0.4103.116     ( I just now updated....issue happened before update) 

As above....webmail 'resets' and minimizes email being composed multiple times . Does this by itself. 

Doesn't happen using Safari.  I also did a workaround and used the OSX app. "Mail" 

This update may have fixed it...

Any suggestions would be appreciated.