Firefox 120 to Firefox 141 Web Browser Benchmarks

I find that these days the browsers are all about the same performance-wise and it ends up not mattering much. PCs are so fast that it's very rarely the browser that is the bottleneck. Cool that they're still working to keep it snappy though.

I will say mobile is a bit different. I prefer mobile browser to apps when possible so I can have ad-blocking, but some websites run like complete garbage on mobile browser. They're so slow it's almost unusable. I'm almost 100% certain that's not on the browser itself though.

This feels generally true but there's some exceptions. For example: I use Firefox as my daily driver, but if I want to watch more than one Twitch stream in parallel I'm forced to use Chromium. Opening multiple Twitch streams on Firefox grinds the browser to a halt.