On my computer, Safari and Chrome both display in sRGB while Firefox displays in the "native" (aka wild west) RGB. You can verify this by opening up the "Digital Color Meter" app.
No, the color itself is ugly, Firefox will just show you the truth
It looks the same on my TN-panel monitor with Firefox 80 and Chrome 84 on Windows 10 and Linux. Could you post a screenshot?
On my computer, Safari and Chrome both display in sRGB while Firefox displays in the "native" (aka wild west) RGB. You can verify this by opening up the "Digital Color Meter" app.