Firefox really has been slowly getting faster for a while; especially with Firefox 54, I no longer felt as if I was taking a significant performance hit as the price for not using Chrome. Firefox 55 got even a bit faster, but still was not quite as fast as Chrome. However, the recent changes in Nightly (Firefox 57), which now landed in the developer edition, really was a huge leap forward in performance.

I encourage you to try out Nightly now (https://www.mozilla.org/en-US/firefox/channel/desktop/). I’m not promising that it’ll be faster than Chrome, but it just might be fast enough now.