I do! I find firefox quantum the best web browsing in my PC and Mac however mac version is not as well optimized as safari in terms of battery life.
Also firefox can playback 4k youtube videos and as you may know safari cant. I also like Brave browser but is still in beta and I find it not as smooth as firefox.
Safari is ok if u only work within apple eco system, for the rest a good web browser with good sync capabilities as chrome or firefox is a must.