Wrong representation/rendering of CSS shaped Website
For example PHPMyadmin is rendered wrong - see pictures below: 1. FF (left) rendering in comparison with edge 2. and 3. PHPMyadmin after pressing CSS in the filter-field of the developpers tools. Then the rendering gets partly better but not yet good.
I tried the suggested changes in settings, refreshed Firefox and did even a complete new install. No changes. What can I try/do next? Problem exists since one or two days without changing anything at the server or client.