Hi Bogalvik

I recomend that you try the new Firefox for Android Nightly. This is an eraly test version, so may have one or two unresolved issues, but does have a great dark theme that does natively dark theme web pages that support it.

I hope that this helps.

The dark theme in firefox nightly changes the colour of interface only. The problem with white "flashes"(white screen for a moment, when I'm opening a new web page), when I'm using addon for dark mode is still actual.

Hi

This is where the page is loading, then the dark theme is triggered. I am not sure what the solution to this is at the present time, but is perhaps something that can be resolved in a future update.