My browser's "disable javascript" extension can disable on a per-domain basis, but really what I'd like is on a per-URL-pattern basis, so that <google.com> is disabled but not <google.com/maps>.

Sometimes disabling scripts is not enough, so I also disable CSS. This makes images huge at the top of the page (navigation icons, etc.). So, then I disable images as well. Then there are huge vector graphics of some kind; I can't tell if it's SVG not counting as an image, or just really large font sans CSS to size it.

Maybe one of these days I'll write a "no bullshit" firefox extension that carefully applies these restrictions except for in a user-defined allow list.

edit: oh yeah, I could call it "reader mode." Hm...