piggybacking on this, the performance of Firefox on a Mac with a 4k external screen is abysmal. any action at all takes an extra second or two to perform. not t

piggybacking on this, the performance of Firefox on a Mac with a 4k external screen is abysmal. any action at all takes an extra second or two to perform. not to mention that if i start watching a youtube video it makes the fans go crazy. i changed back to chrome because of this and it's so much smoother.