La primera extensión de pago que me encuentro en firefox... espero no volverlo a ver nunca mas
Recomiendo:
https://addons.mozilla.org/es/firefox/addon/darkreader/

This add on works pretty well for Chrome, but is completely unusable on Firefox. Aside from horrible performance, it also causes issues with Ajax calls and other extensions.

Horrible on Firefox. Makes all websites slow and unresponsive and constantly crashes Firefox. And I have to pay real money for this privilege? Pass.

Extension payante !!!

Bagus Add On ine. batur.

Just Excellent!!!

as many said slowed down and made it unusable on several web sites, I thought it was good on Facebook too until I got to my home computer and it was awful and it is a far better equipped computer... I'll wait for an update or a built-in solution. (on Facebook it turns all the emoji black)

Looks best when compared to competitors. Paid subscription is ok. Slows down page load and occasionally breaks all web sites from being loaded. I hope it gets fixed. Such occasional total breakdown and slowness is suspicious. Is it really totally local and does not depend on communicating with central server for some reason ?

Completely unacceptable to ask a sub for a simple dark mode. Don't bother with this trash.

I am a big fan of the concept! Some sites look wonderful. Yet, the extra overload is not worth it and some images and buttons disappear.

Doesn't work on most sites and makes many of the sites it *does* work on completely unusable.

nice nice nice nice !!!

PAYED SUBSCRIPTION !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Payable extension?