Grumpy Old Geeks Products Firefox Quantum Product Firefox Quantum 4 mentions in 2 episodes A Firefox browser release the hosts compare with Opera for speed. Mentions 236: Unnecessary Reboots Nov 21, 2017 38:08 I gave Firefox Quantum a go this week 39:05 I could not tell the difference between the speed in Quantum and Opera. 229: I Am Altering the Deal Oct 2, 2017 51:01 they've launched a new browser. Firefox Quantum. 51:20 you can get it now in beta edition, which I did this morning. It's fast as hell.