Mozilla announced its upcoming Firefox 70 update will contain fixes that will resolve the increased power consumption of Firefox Quantum, which was a revamped, performance-oriented redesign of the browser. Users of macOS will see the biggest gains here, the upcoming update will reduce Firefox power consumption on Apple's operating system by a factor of up to three.
Firefox Quantum significantly increased page loading speeds but power consumption has remained an issue since the browser launched in late 2017.
But according to Mozilla engineer Henrik Skupin, Firefox devs have finally made a breakthrough, and believe they fixed Firefox's power consumption on macOS.
Skupin said that a current fix for the battery drain issue has been deployed on Firefox Nightly, where it managed to reduce power usage by three times.