Is there any reason Webroot would stop Etsy.com from loading?

For some reason, even thought the url is correct in the browser bar and the site has finished loading, I get nothing but a blank page.
 
I have to restart and open the site first before anything else, and it will be fine for a while, but then it will start again - nothing but a blank page.
 
I am at my wits end over this. Since I sell on Etsy you can imagine how unproductive I have been since this started a couple of weeks ago.
 
I use Firefox on a WIndows 10 Toshiba laptop. Any help that can be lent is much appreciated.
 
P.S. I just tried opening Etsy.com in Google Chrome and same problem resulted. Nada. Blank page. Help!!