Built-in dark mode for web contents

[batata]

I love extensions like Dark Reader that automatically transform any website with a dark theme. The way they do this is by injecting many new styles into the DOM, it works but there is two main drawbacks to this method :
- there's a latency that makes contents blink
- it reduces performances on some websites by a lot

So It would be great if there could be a built-in low level solution (directly in web render?) that would swap colors on the fly without editing the page styles and thus would solve the two aforementioned issues.

[Jon]

(Note: similar ideas have been merged into this thread)

[throwaway462864]

just implement this, for the love of God.

Firefox is literally the only browser on Android that doesn't have a built-in dark mode for websites.

don't complaint later if you start losing your users. 😐

[perladuenas1]

Hi,

Thank you for bringing this Speedometer concern to our team. I'm on the Performance team at Firefox and I believe the reason your Speedometer score is worse is because of an issue with the extension Dark Reader. We can work with the Dark Reader team to make their extension quicker but there is only so much we are limited from our end. Thank you again for raising this! 

[FOSSFOSSGO]

@perladuenas1thank you and I believe I speak for everyone here when I say that we appreciate everything you do to improve dark mode on Firefox. However, as @batata said in his original post, as much as we love extensions like Dark Reader, they're inferior in that they inject many new styles into the DOM, thereby performing slowly and unreliably. Instead of trying to perfect what is inherently bad, IMHO it would be preferable if the team at Mozilla developed a built-in low level solution.