I never use tabs, so dunno when this invaded my browser but all of a sudden there's a list of tabs going from left to right - starting with the website I am on (e g this one - ``Get Support - Mozilla Support''). I do not need a 3/4 inch bar telling me TWICE what I can see ONCE already on the address bar. I have researched Firefox Support for a week now and things like the ``chromecss'' file have nothing to do with it and neither solve the problem no r escalate to somebody who can.