Release 136 is Substantially Slower than Prior Versions

[remccar226]

After Release 136 was installed on my system, I immediately noticed that the new version was substantially slower than the prior version.  When reloading an app, the reload process changed from immediate to several seconds.  Rolling back to prior version.

[klaße_]

I got same — frustrated. So I tried the beta version and it works somewhat faster; i.e. vers. 137.0b6

[wakefield]

So slow , have now moved to chrome which I find a lot faster

[Two1stNames]

Same for me. 136 is VERY slow even with all extensions turned off. Can take several seconds to scroll. However, restarting Firefox in Troubleshoot Mode solves the problem. What does troubleshoot mode do other than turning off all extensions?

[Two1stNames]

I think it's a hardware acceleration problem.

uncheck: Settings > General > Performance
     and
uncheck: Settings > General > Performance  > Use hardware acceleration when available

That solved it for me.