This is hands down the best looking dark theme extension for Fire Fox that I have tried. Out of all the other ones I have used, this one manages to do the best when it comes to picking the right color schemes for websites. Alexander really has a knack for colors!

Unfortunately, Dark Reader, like a lot of the dark mode extensions I have tried, has a huge performance problem. This is most obvious on sites that have a lot of JavaScript or are using newer technologies, from what I have noticed. FaceBook, Amazon, Verizon (to name a few) slow down significantly when using this extension.

Also I have noticed Dark Reader is not perfect at reskinning web sites. I have had it glitch some sites out and cause them to look really weird or unusable. These are of course edge cases, but the longer you use the extension, the more you start to notice it.


I have tried Dark Reader on numerous computers, and unfortunately all of them end up having the same problems. So, alas, I will probably not be having the cool little Vader with glasses gracing the upper right hand corner of many of my browser tabs for a while. If these performance problems get fixed, I definitely will increase my rating.


None the less, this probably is the best dark mode extension there is right now. I really hope that the performance problems can be fixed. I have heard they are not as bad on Chrome, but if you are like me, that's not really something to consider.

Excellent addon

The Firefox version makes using this thing so annoying. It's great under Chrome but for some reason it slows down load times so much it's impossible to use with Firefox.

I mean, it's a great idea and when it works it works well, but if I wanted to wait 5 seconds for each page to load I'd stop paying for my high speed cable connection. I gave up on Chrome after the latest update and wanted to move all my plugins over to Firefox. The is the only one that caused enough hassle that I had to give it up. Too bad I got so used to it under Chrome.

Best Extension for my ayes

Its a Great extension

Best dark mode extension, been using this for years, am happy with it and sites are continuously updated

Works better! More compatible than the other options. Thanks!

É exatamente o que eu precisava!

Awesome add-on but the Firefox version slows down a lot the browser. The Chrome version is perfect (but the browser isn't)

Love it thanks!

There are many like it, but this one is the best. Although I wish there was an option to turn it on/off automatically based on time/location.

This was the only extensions that was keeping me in chrome/chromium. Since its now in firefox, I have no reason to stick with these browsers, and am back in firefox.

Good but it does slow down page speeds considerably.