Why is Webroot Secure Anywhere, filter extension slowing my browser down so much suddenly?

Hello Knott, welcome to the Webroot Community!
 
You are very much not alone: scrolling through posts here the last several days shows quite a few others have been affected as well.  The problem is rooted in a new set of Extensions that Webroot has issued which will end up giving us a far better product in the end.
 
At the moment, however, the Chrome extension is being a bit stubborn, as you have noticed.  Webroot is very much aware of the situation and is working to correct it.
 
 If you are using WSA-Complete, you migth try running the System Optimizer to see if it will be of help, as Support as reported to us the broswer cache/history clearning utilities seem to fix the problem.
 
If this does not work for you, please submit a Trouble Ticket to have Webroot Support give you a hand with this.  There is no charge as Support services are included with your valied WSA license.
 
I have also heard it reported that Support has used CCleaner for customers that do not have WSA-Complete's System Optimizer with good results as well.
 
I hope this helps!

Thanks for the fast reply. I will run the optimiser.

If you get a chance, do let us know if it was of any help with the issue.
 
Thanks 🙂