Best on desktop, good on mobile.
Maybe this wasn't developed with the android version in mind, but it does work on it and I have two minor issues: it flashes a white page on some page loads and it seems to be quite heavy for my Nokia 6.1., which leads it to crash every so often.
Other than that, great! Why does the internet still stick with blinding white pages with black text..

見やすくていいんだけど、webの読み込みが重くなる。残念だけどこれからの開発に期待してます。

The extension is fantastic, far better than any alternative I know of.

BUT: it seems to run significantly less smoothly than on Chrome, specifically running horribly on Google sites (Gmail, Calendar), Facebook and others. If you could some how address this issue it'll be great.

good!

Really good but perfection-able: a function to change the font's size would be useful.
Sometime slow with some sites.

Works really good.
It's only one star away from being top rated for me because I think the options menu could use a clean up its really messy.

AND its missing a feature.... i want Dark Reader to be by defaule OFF on all websites so that i can enable the ones I want to be dark individually myself, right now the reverse is true but i want to be able to pick what my own default is

Sometimes tends to block browser for a few seconds (when switching pages or toying with add-on settings), as if the add-on was doing too much computation. Could use some optimization I guess.

ALMOST.... Perfect. Everything my eyes needed since then. Although, I wish there's an automation button that automatically darkens the website since I don't want to toggle every time I visit a new site. However, it's still an helpful app tho!

This Extension provides excellent dark themes on almost all websites. But when I visited sites such as redhat.com/en/blog/..., my CPU usage went all the way to ~90% (a fairly new Intel i5) and RAM (4GB) continued being filled up until the whole system crashed.

It is difficult to create an algorythm that would give the optimum result to every page on the net I imagine. That is why respect for the undertaking, thanks for delivery. The addon would greatly benefit from an integrated user feedback feature that just reports which site is with which mode is not working to arrive at an overview.

The only thing that would make this extension perfect for me is if your site lists could be synced across browser installations. Is it possible for extensions to use firefox sync?