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Why is Firefox slower on a Mac? I know Safari is (supposedly) faster than a lot of the other options, but I haven’t seen anything about Apple slowing down other browsers on Macs[0].

[0] I know they force all browsers to use the same webkit engine as Safari on mobile devices, and used to limit competitors to an older slower version for “security reasons” but AFAIK they don’t slow down competitors on mobile anymore and never have on Macs

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It's not Apple that slows down Firefox on Mac. It's just that Firefox cannot match the resources that apple and google throw around on their browsers. Firefox has to be economical on where their resources are directed towards. And understandingly Macos specific optimizations not the top priority.

They didn't have to rewrite everything in Rust thereby harming performance to a large degree.

That's not how Rust works.

>checks benchmarks And that's why I disagree. Also old-school Firefox and Seamonkey run great on my P3 450.

One component was Safari using unofficial APIs. But some of these unofficial APIs have since been used by both Chrome and Firefox as well.

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