Comment by latentflip

I haven't tried, but I think this should be very easy to implement as a Google Chrome extension, if it hasn't been done already.

Just had a quick look, and there is this extension: https://chrome.google.com/extensions/detail/eochlhpceohhhfog...

That could be a pretty good starting point to build one that scrolls based on the mousewheel rather than choosing an option.