Firefox 75.0 sluggish?

Firefox was upgraded to 75.0 a few days ago. On my system, it feels sluggish and occasionally slow in responding to keyboard actions. Anyone else who has the same feeling?

 

Also updated to 75.0 (automatically) and can't say that I have noticed any issues - as yet!

 

Try clearing ALL recent history for all time.

 

I have set it to clear all history except cookies at shutdown but I'll try to clear cookies also (meaning that I'll have to login everywhere again which is why I leave cookies alone).

 

You can clear all cookies and still login if you have allowed FF to save the logins.. Just don't clear the Saved logins.

 

Also, a previous version of FF added a Cloudfare DNS handler. Disable it at Options > General > Network settings > uncheck Enable DNS over HTTPS

 

Yes, I know but I don't want to get logged out.

Thanks, I'll have a look into that.

Edited:
That setting was not checked. Must have been that way by default because I don't recall unchecking it.

 

I too have rebooted several times and also followed Tony's advice but it still laggs from time to time. I downloaded two files attached to an email, the first one went well but I had no response to input from the mouse or keyboard for several seconds before being able to get the second file.

Someone once said that "one should never install the *.00 version of any update to Firefox but wait for the *.01 version". Nowadays updates drop down like rainfall and I'm surprized that, at the risk of messing it up, they bother to fix something that works?

 

I tend to follow that advice on my "work-a-day" laptop. The .01 version usually follows withing a week or two.