Firefox using over a kilowatt?
Screenshot of PowerTOP telling me that Firefox is using 1.36 kilowatts, from 2016-04-26.
Of course I don’t believe it for a moment, and I didn’t bother to find out why it reported such a large value. It’s probably just a miscalibration or instantaneous sampling error.
I did like the way the units library knows what a kilowatt is, despite being in some software that’s unlikely to ever see one.