I don’t think the memory management part has gotten anywhere at all. Open 10 tabs on Firefox and I lose 2-3GB of my RAM just like that. Chrome and Edge never cross 700MB.

Firefox is a colossal RAM guzzler.

I have the opposite problem. I regularly open lots of tabs, and Chrome just expands its real estate pushing things into swap. Firefox just chugs on like a champion.

Definitely the opposite of what I see, as well.

The RAM think really depends on the websites and what resources they are allocating. The browser is really just accommodate that. Sites that do continuous scroll are the worst as they often don’t release resources as they go.

I mean, it consistently gives me highest energy score on a macbook.

I find that the video codecs used by sites are often the determining factors in that. If the site is playing videos using a codec that is handled well by the browser then the energy use is low. Otherwise it can jump up dramatically.

And Chromium does not?

Safari does not.

Good old KHTML :)