This started out great but over time has become and increasing nuisance. It really would be best if it had some sort of machine learning in it that allowed intelligent display of a page based on the page's settings, not necessarily this app. Renders Ecosia searches illegible and frequently makes pages look dusty rather than making them more readable; dark grey text on a taupe background is actually really difficult to read. It also eats up memory like nobody's business. Won't be using again, i'll just turn down the whole screen brightness and deal with it.

It was working fine for 3 weeks. Then it kept causing firefox to slow down and crash. Worked great otherwise, please fix this issue.

Dark Reader doesn't work on most sites for Firefox For Android. It seems as if settings apply only to Firefox Desktop, no mention of android.

Very CPU intensive, pages blocked still have some elements changed. un-installing will try again w/version 6...

- Das Add-On macht das laden der Seiten sehr langsam.
- Die Farbwahl/Kontrast und Darstellung ist nicht besonders gut gelungen. Teilweise sind einzelne Texte überhaupt nicht zu sehen.

为什么这个页面没有黑呢？还是白色的，有点假吧！

Hace que el navegador funcione muy lento, y eso es una cosa que valoro mucho de los navegadores, por eso solo le doy 2 estrellas, pero el resto de la extensión es perfecta, solo le falla eso.

Auto-detect does not work at all, at least on Android. My phone is in night mode, but this extension completely ignores it. I remember when I could manually set when to turn this thing on, but seems like developer cut this feature.

I had to disable the extension for now. It slows down every website load.

It used to work without problems but ever since the last update it works 5 times out of 10. Most times now I have to turn it off since it makes some major sites (like eBay, Amazon, and Google products) just load and run as slow as a turtle duct taped to a boulder. If it didn't have those moments of slow down then it would be the perfect product.

Great features and really saves my eye strain. Unfortunately it makes your browser extremely slow. Some sites take over 30 seconds to load with this add-on enabled. When you disable the add-on the sites load fine.

新的auto模式只能识别系统黑暗模式开启，但是我的手机系统没有黑暗模式啊！请求把之前多样化的自动设置加回来🙏

Update: Tried to use this as this is the one of the only ones that seems to "work" on the mobile Firefox platform. But today I had to uninstall it. The script that this addon keeps crashing and I have to either "stop script" or "continue" when it does crash the page. This addon is absolutely clumsy... Grateful that it is free, but even though it is free, it is unuseable...

OLD:
I really tried to love this extension. After getting a notice that a Dark Mode extension was no longer certified or checked or whatever the mozilla folks are determining safe use was no longer safe, I switched over to this one since it was "recommended" and seems like mozilla was ok with it (whatever the hell that means).

The interface is clumsy, can't you just implement a simple switch?

When you do turn it on or off, you have to refresh the page, which sometimes destroys the content of the page.

I really really tried to like it, not give it one star cause you deserve an extra start for effort, but the quality of this extension is an F. It's clumsy, too many options (just give us dark mode, 99% don't care to tweak the little things, it gets in the way).

Why are "dark mode" so hard to implement? Just flip the white to black, black to white, and if the pages don't come out right, we'll just force it back and complain to the webmaster. I just don't get it.

耗资源太大，手机端大一些的页面，会造成火狐无响应。不如Dark Background and Light Text好用。

cuando vas a poner un video en youtube produce un error

Słabiutko. Najpierw dostajemy po oczach bielą, a dopiero po dłuższej chwili włącza się tryb ciemny. Oślepnąć można.

Slows down FF dramatically. Also, the new tab window is still burning-the-eyes white.

Works butttt I think someone is mining coins
too many script injections

This extension corrects the colors in dark mode instead of just inverting them, but it still has a memory leak. Certain webpages will cause Firefox to start filling my 32GB of RAM fairly quickly (300 MB/s). I was hoping this had been fixed since the last time I tried it.

一瞬通常のページが表示される。
また、Loading, please wait
と言うメッセージが長々と表示され、まともに動かない。
YouTubeの一部UI（高評価ボタンなど）が、おかしくなったり、黄色いマーカーが引かれているネット記事が見にくかったり、画像の階調が反転したりと、まだまだ未熟なアドオンです。

How is this suppose to work? Some sites freeze and i have to hit "kill script" often... most other sites have endless glitches... it would be way better if it was turned off by default and you could just enable it on text heavy sites

Works in Firefox 71 on Mac, doesn't work on Firefox 71 on Windows.

This is one of the must need Extension on my Firefox but the way it just stops working on few sites in completely unacceptable when it works quite fine on Chrome. LinkedIn, Facebook and even Instagram and Gmail doesn't work properly with this one where it doesn't make elements dark somewhere and sometime takes the entire site down with it just like Gmail.