The new version of Firefox just loaded. The theme of the browser changed. I went to the section which controls themes and found the system theme does not work... There is no difference between when the light theme or the system is selected. I went to the download to see if I could re-install the system theme and did not find it.

Light theme is too light and dark theme is too dark. The system theme is a good compromise but not like the one in the previous version which I liked. Is there a way to fix this Firefox issue?