It seems they are actually using the power-not-hungry GPU more. From the v69 release note: > For our users on macOS, battery life and download UI are both imp

It seems they are actually using the power-not-hungry GPU more. From the v69 release note: > For our users on macOS, battery life and download UI are both improved: macOS users on dual-graphics-card machines (like MacBook Pro) will switch back to the low-power GPU more aggressively, saving battery life. https://www.mozilla.org/en-US/firefox/69.0/releasenotes/ https://www.mozilla.org/en-US/firefox/69.0/releasenotes/