My main driver is EinkBro (on an e-ink tablet), which similarly doesn't seem to be brain-damaged in this regard.
<https://github.com/plateaukao/einkbro>
I do have Firefox (Fennic Fox F-Droid) installed on that tablet. The reading experience is so vastly inferior despite numerous capabilities of Firefox (most especially browser extensions) that it's not even funny. Mostly because scrolling on e-ink is a disaster.[1]
Chrome/Chromium of course is an absolute disaster.
EinkBro has incorporated ad-blocking, JS toggle, and cookie rejection, which meet most of my basic extension needs. The fact that it offers a paginated navigation (touch regions to scroll by a full screen) works far better with e-ink display characteristics.
I'll note that on desktop I also usually scroll by screen, though that's usually by tapping the spacebar.
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Notes:
1. The thought does occur that Firefox/Android might benefit by an extension (or set of same) which address e-ink display characteristics. Off the top of my head those would be:
- Paginated navigation. The ability to readily scroll by a full page, rather than touch-and-drag scrolling.
- High-contrast / greyscale optimisation. Tweaking page colours such that reading on e-ink is optimised. Generally that would be pure black/white for foreground/background, and a limited greyscale pallette for other elements. Halftone dithering of photographic images would also be generally preferable.
- An ability to absolutely freeze any animations and/or video unless specifically selected.
- Perhaps: an ability to automatically render pages in reader mode, with the above settings enabled.
- Other odds'n'sods, such as rejecting any autoplay (video, audio), though existing Firefox extensions probably address that.
I suspect that much of that is reasonably doable.
There is an "E-ink Viewable" extension which seems to detect and correct for dark-mode themes (exceedingly unreadable on tablets, somewhat ironically), though it omits other capabilities: <https://addons.mozilla.org/en-US/firefox/addon/e-ink-viewabl...>.
"Edge Touch Pager" addresses navigation: <https://addons.mozilla.org/en-US/firefox/addon/edge-touch-pa...>.
And there's a Reddit submission for improving e-ink experiences w/ Firefox generally, which touches on most of the items I'd mentioned above: <https://old.reddit.com/r/eink/comments/lkc0ea/tip_to_make_we...>.
Future me may find this useful....