Check about:support and look for a number higher than 0 in the "Multiprocess Windows" entry. Old extensions or something may be keeping you from running multi-process.
I have a 1/1 there, and the only extension I have loaded is the new version of Tree Style Tabs.
> Edit: The scrolling is also very laggy, which I forgot to mention, much more so than Chrome.
Firefox uses smooth scrolling, while Chrome always uses very jerky, jumping scrolling.
Have you tried disabling that?
Re:How Firefox Got Fast Again
by piotrkaminski on Monday November 13, 2017 @10:00PM
(#15692260)
FYI, Chrome has had smooth scrolling since v49. https://developers.google.com/web/updates/2016/02/smooth-scr...
I use a magic trackpad for scrolling and the delay before scrolling is there in either case, but it was off.
I haven’t had any lag in text entry, but I ran the Windows version for a while (making sure I gave it plenty of time to build up a cache) and my general perception is that Chrome is still faster.
I like the idea of switching to Firefox a lot, but from a performance perspective I’m not seeing quite what everyone else is.
The typing lag put me off immediately.
I've measured the input latency and its ~3x slower than chrome.
Filed a bug around a month ago https://bugzilla.mozilla.org/show_bug.cgi?id=1408699
Edit: The scrolling is also very laggy, which I forgot to mention, much more so than Chrome.