I hate to go against the FR grain, but I’ve found Chrome to be far faster than Firefox these days. I have both Chrome and Firefox on two computers and Firefox has become a real pig on both over time. It takes forever to load and it takes forever to load a page, and that’s with the Ghostery ad blocker clearing a path.
Another vote for Chrome being faster than FF.
As an aside, I was having a problem with one specific webpage displaying correctly.
After running the Chrome Repair Tool, not only did it correct the display problem but Chrome runs even faster now and my desktop loads in only 7-8 seconds, a 50% improvement.
If all you want to do is do a little surfing, check email. etc. then most any browser will do. But for serious research, multiple forum threads and profiles, only browsers of the Firefox family will do, but NOT Firefox Quantum, which is basically a different animal. Chrome will not even allow multiple tab rows, or (last i checked) changing the ctrl+tab switch.