Firefox 51 slows down for everyone?

Question

Mozilla Firefox

In principle, it has long been known that Firefox is not the fastest browser.
But after updating from version 50 to version 51, subjectively, the brakes increased significantly. With any sneeze, scrolling, switching tabs, small (and sometimes not small) jerks are felt.
Is this the case for everyone, or was it just me who got lucky by some coincidence?
Windows
updated
After updating to 52, a new trick appeared - on YouTube, switching to full screen mode and back takes 4-5 seconds.

Answer 1

I always noticed that Fox works much better for me than Chrome.
With the release of the 51st version, nothing has changed for me personally.
On Windows, with 3 gig RAM, there are brakes from any browser I have.
But on a working machine, Linux mint, 8 RAM, everything is fine.
I looked now at resource consumption, chrome still eats more.

Answer 2

Slows down from the very beginning of use (from the first versions), RAM eats from 2 to 8GB for the last year
But, subjectively, it’s more convenient than chrome and the brakes are not critical
Configuration: i7 3770, 16Gb RAM, SSD, Win 7-10
If there are more than 8 or more RAM , you can turn on the multi-process mode, it starts to work noticeably faster, but at the same time it starts to mercilessly absorb the RAM

Answer 3

Maybe you need to put x64 FF on the x64 version of windows? Updated in the morning to 51, did not notice the difference, the norms work (SSD + 6Gb RAM).

Answer 4

what video card and what driver version?
on about:config try shutting down and restarting the browser
general.smoothScroll = false - just turns off smooth scrolling
if it doesn't help - turn it off and
layers.async-pan-zoom.enabled = false - www.ghacks.net/2015/07/28/scrolling -in-firefox-to-...
about:performance - are there any extensions that slow things down?
about:support - Multiprocess Windows 1/1 (Enabled by default) or not working?
also write - what's in Compositing, in Direct2D and DirectWrite

Answer 5

A similar problem - for a long time I sinned on different aspects of the computer (little space on C, etc.), and as a result I came to the conclusion that Fox began to slow down. And it is on version 51.
Came back to 50 - it seems to be better.