Between Firefox and Chrome, the performance is almost identical. What is different is the smooth scrolling behaviour: it is far smoother in chrome than in Firef

Between Firefox and Chrome, the performance is almost identical. What is different is the smooth scrolling behaviour: it is far smoother in chrome than in Firefox, and that has a dramatic impact on how performant the browser “feels.” If Firefox tinkered with that a bit, it would be game changing. (The few times I’ve had perf issues in Firefox were all either addons or sites designed to work only in chrome)