Chrome users are often really familiar with Chrome's devtools and think Firefox is behind because they have trouble finding their way around FireFox's devtools. Truth is that Firefox built a reputation for itself amongst developers specifically because of it's very advanced devtools. Chrome has mostly caught up, but I'd still place Firefox ahead here

Besides that, uBlock Origin, Bypass Paywalls Clean, and AdNauseum working have been enough of an argument for me to be able to convince my friends to make the switch.