Firefox performs badly, especially on my 2-core macbook.
Quantum is still not fast enough with many pages I use, I bet most devs do not test on firefox anymore and I've found FF unusable unless you use a 4 core machine, otherwise you get many random pauses here and there.
So my choice is chrome or safari. Safari is not customizable enough for me so chrome it is.
I use Firefox as my daily driver and I am consistently amazed by how slow Chrome is whenever I load it up for a debug session or to access a work related site (it's the new IE, sites only support it).
Most Google sites are faster than Firefox (big surprise /s) but most everything else is the same or slower. I thought Chrome was supposed to be fast, it feels like a turd.
I have a Yoga 2 (4 years old) and my laptop fan revs up like a harrier jump jet whenever I load Chrome. Firefox only manages to make it purr loudly.
Quantum is still not fast enough with many pages I use, I bet most devs do not test on firefox anymore and I've found FF unusable unless you use a 4 core machine, otherwise you get many random pauses here and there.
So my choice is chrome or safari. Safari is not customizable enough for me so chrome it is.