[zqfm]

This is anecdotal, but my experience has been the opposite. I briefly switched to Chrome some years ago because everyone else was and the dev tools were genuinely better, but as a user it felt clunky and slow, so I switched back to Firefox. They pretty quickly got their act together wrt to the debugger and such and so I only ever dropped into Chrome for work and to this day it's still clunky and slow. I never understood why anyone would want to stay with Chrome especially with Google ramping up their shenanigans.

[inferiorhuman]

Firefox has been fairly meh for me performance-wise, and tends to absorb memory over time. I kinda expected that with a few hundred tabs open.

What I didn't expect was how sluggish Firefox (119.0.1) would become on a brand new machine with around 20 tabs open. By the time I restarted it today, switching to Firefox and acquiring focus took about 2 seconds. I've a grand total of 3 plugins (FB Container, Multi-Account Container, uBlock Origin) installed.