There is no excuse for firefox bad performance on decent hard. And such "old" computers are not edge cases! Any Sandy Bridge i7 from 2012 easily outperforms mo

There is no excuse for firefox bad performance on decent hard. And such "old" computers are not edge cases! Any Sandy Bridge i7 from 2012 easily outperforms most odern laptops. There is some progress made in performance per watt, but raw performance strongly decrease after the 39xx series.