Hasn't Firefox been around for longer than Chrome...? It's a bit off-putting when they can't seem to solve popular platform issues.
I've been on Chrome for a long time, tried to switch to FF when Quantum came out and couldn't hear myself think over the sound of my laptop winding up.
Yes it is. Given that their team is top notch and their intent has been great so far, I will go with "it's a freaking hard problem and google could afford spending millions of dollars to solve it" kind of explanation.
Another reason could be that Google
optimizes both sides of the Chrome/Google webapp interaction but doesn't care very much about optimizing for any other browser than Chrome.
Once you realize that not being evil isn't a priority at Google anymore this explanation actually makes some sense.
I've never had any issues on my Mac. Then again, I'm using an MBA 2012 sans Retina. If you are using displays with "non-standard" resolution (including Retina), even external ones, then you can refer to my other post[1] for background.
I've been on Chrome for a long time, tried to switch to FF when Quantum came out and couldn't hear myself think over the sound of my laptop winding up.