Comment by bornfreddy

Yeah, it's not Firefox that is slow, it is Google properties that are slow on Firefox. Otherwise FF is fast, or at least Chrome is just as slow or slower (judging by seeing others use it).

I mostly avoid Google websites, but when I can't, I always use Brave/Edge/Chromium on those. E.g. Google Earth is especially useless outside of Chrome-land.

Firefox (with uBO) also probably wins any realistic speed comparison simply because it still supports MV2. I really don't care how fast the ads are loaded, I prefer blocking them. Especially the most privacy invading ones (i.e. by Google).