I used to be the same - I used Chrome as my "dev" browser, and Firefox as my "actual" browser. But Firefox has gotten worse and worse (hanging, slow response, etc) for no discernible reason (i.e. I disabled all the extensions and it was still bad).

So I gave Safari a try. And it's actually... fine. Nothing mind-blowing whatsoever, but has all the features I needed in Firefox. My one irritation is the trackpad gestures I don't want. A good few times now I've accidentally gone back by swiping with two fingers, zoomed out to tab selection by some oversensitive pinch gesture, etc etc