The best you can get

mostly works, but on jisho.org it breaks the drawing function, preventing me from seeing what i'm writing

muy chevre el color negro y el efecto sepia pero no me gusta que me vuelva lento el computador

Compatibility is very good, but the only drawback is that it will not switch automatically according to the time period

the best dark mode add-on out there.

It's rly great and helped a lot to get rid of these annoying white pages.. sadly it's crashing lately more often after the FireFox update 80.0.1 ..I hope that u look into the problem.. it's rly need a new update

I used to really like Dark Reader, until it seemingly ruined firefox for me. Now, I have some websites that will only work if I enable Dark Reader, as the text often is permanently white. This is a problem that has stayed even after I disabled Dark Reader. The only thing that works is completely reinstalling firefox. Some websites just don't look as good in dark mode, so not having the option to turn it off sucks. It also started slowing down my browser like crazy, so it has its fair share of issues.

This is by far the best FF add-on I have, and it was just added a few hours ago. Nothing online is as important as being able to comfortably read and view images when browsing. If your eyes get hurt/strained it not only impacts your browsing experience but it can mess with your eye health long term. This add-on is allowing me to surf at night with minimal to no room lighting and not be blinded when a normally overly white page loads. I have just begun to play with the wide range of customizable options available. I am feeling a donation is heading to a dev after I play with this a little more and learn how to best use it.

Worked great without any problems until Firefox 8.0.1. Now it crashes randomly and has to be disabled and re-enabled to work again.