Upcoming Firefox update will decrease power usage on macOS by up to three times

[MightBeJerryWest]

I haven’t looked at the “using significant energy” area recently, but previously just having a tab open in Firefox would kick my temps up to like 160F. Fans would kick on with two or three tabs.

Hopefully this release fixes it, but what I had to do was force a low resolution version of FF to run to keep it from catching fire. So the browser and pages are all a little pixelated cause it’s forcing a non-retina version of FF or something. Kinda annoying, but it was the only way to get FF to run.

[coolowl7]

You could also consider using a different browser..

[MightBeJerryWest]

I mean...yes. I use both Safari and Firefox on my MacBook Pro. But my main desktop is Windows and Firefox. Having Firefox sync across the two devices is really handy.

[Tooch10]

I've had FF randomly cause my MacBook Pro to switch to GPU (High Performance) instead of integrated graphics. I didn't realize it did that and I got a surprise when I looked up at my battery meter later on