Normally, I use light theme.
When using the Dark Reader, it is correct that everything is dark.

But when off using the Dark Reader, my theme is still dark, although should return to light theme as before.

I really like the add-on, it does exactly what it says it does, and does it very well. It gives sufficient controls to configure, and selectively customise or disable the add-on on specific websites.

That said, I disabled it today after trying it for almost 4 months. Sometimes it slows down webpages too much, specially long pages (e.g. Github's webhook payload docs page), pages with visualisations (plots and figures, e.g. the coronavirus monitoring page by worldometers), and sometimes login pages.

I also have a hunch it's causing the memory footprint of my FF instance to bloat. I have a really beefy laptop (>13 gigs of RAM available), and it still starts paging after half a day. I do have a lot of tabs open, but I didn't have this issue before. If I continue to have my RAM issues after disabling the add-on, I'll come back and remove this paragraph.

Edit: now I have been running with the add-on disabled for half a day, with the same set of tabs, and my memory footprint is about 1/3-1/4 as before. Really sad that I can't use this add-on, back to being blinded on the Interwebs :(

Dark Reader works beautifully on Android, however I need to manually turn it on instead of relying on Auto button. My phone turns on dark theme at night and other apps do follow except for this one. I'm not quite sure if I'm missing something.

Thank you for making this.

Muy buena extensión

Easy to use and works great. Thanks to the developers!

Расширение прекрасное, но браузер стал работать в 10 раз медленнее, поэтому только 4 звезды

One of the best addons for Firefox

Best CSS modifier for dark webpages on the add-on catalog. Much more better understanding css elements and changes color other than alternatives.

After the fix it's working great!

Super extension! I ask you to consider the possibility of making a hotkey for switching the (dark<=>light) mode and adding a filter for solarized dark theme (dynamic if possible).

A must have! Does not affect Firefox performances and provides beautiful dark modes for websites that does not integrate them natively... A super eyes saver :-)

excellent add-on a must