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.Firefox 70 is expected in late October 2019.
Via: ZD Net