Chrome is the only app I have that will consistently turn my macbook into a 1000˚ clothes iron. That's probably the #1 reason I still use Firefox for general computing.
That's not my experience. Chrome is my main browser and although it is using significant energy according to battery indicator, the notebook is never running hot nor do I have problems with battery.
I should note, I tend to have a LOT of tabs open (like 20–70, because I have a sickness). In Chrome, each one gets its own slice of CPU, and it gets way up there.
My lap, and my potential for creating future children, much prefer Firefox.
If you call 20-70 tabs a sickness, then what would you call my 374 tabs?
The illest.
This has been my experience as well.
Many tabs = MacBook is burning like a second sun.
Sometimes I restart Chrome and it's better. So maybe some of it is caused by leaky scripts on pages etc. but it's very annoying.