I'm not a big-time Mac user- only using it for work. So, I'm usually plugged in to a power source. I also don't use Chrome or Safari, so my answer is almost com

I'm not a big-time Mac user- only using it for work. So, I'm usually plugged in to a power source. I also don't use Chrome or Safari, so my answer is almost completely useless to you. :P But, those times when I am "free range", and I pull up the Activity Monitor thing, Docker and my IDE(s) are almost always using more energy than Firefox for me, unless I have a tab open that's doing something stupid. That being said, it's always in the top 3, beating out the mail client and Teams chat. I don't know if that's better or worse than Chrome or Safari, but I wouldn't be surprised that either of those are superior than Firefox in technical metrics.