Simply doesn't work. If there are settings changes that need to happen, they are not at all apparent, and there is no info in the "About" page here about any additional necessary setup that may or may not be available to make it work. Saying "all websites" and not having it work at all is pretty bad.

Randomly toggles mode on it's own, and it covers some images and videos making them unviewable.

FUNKTIONIERT überhaupt NICHT !
Einfach "Dark Reader" installieren, der funktioniert, gibt´s auch für Google Chrome, da hatte ich das Add on auch schon, aber das hier war weiter oben bei den Suchergebnissen.

Adding exceptions does not work - (e.g. vk.com)
The exception is under "exclude from darkmode" but it is still applied to VK!
Useless for me!

The websites were all blank