Comment by codelike

Firefox used to have the amazing "Mouse Gestures Suite" add-on, which provides scroll-wheel-in-tabs and rocker navigation. Unfortunately with the new Firefox (since v57) it doesn't work anymore, since it uses the old extension approach.

There seems to be a new add-on for the web extension approach (https://addons.mozilla.org/en-US/firefox/addon/foxy-gestures...), but I haven't tested it yet and am not sure how robust it is at this point.