As someone that jumped ship from how slow Chrome has gotten and went to Nightly /w Stylo and (CPU threads - 1) e10s processes enabled about 2 monthsish ago... Holy damn Firefox is actually fast. Fair comparison, both having Pocket, uBlock, Evernote, OneNote, Pushbullet, and Bitwarden; neither of them having an extension the other doesn't. Above described Firefox Nightly config vs Chrome Dev. Test machines are a works…
I'd like to see the same comparison on a Mac. The Windows version of Firefox has been close to Chrome performance for a while. The Mac version has been significantly slower.
I've been sending feedbacks for Nightly for a while now, but they don't seem to read them. The two biggest issues are:
1- High CPU usage (which leads to high temperature and shorter battery life) 2- No "Look Up / Define" in right-click menu.
Fix them and I'll switch from Chrome in a blink.