Hi, There's a Scottish newspaper website that has started causing Firefox problems. When you click on one of the articles, the page half loads then Firefox pops up a yellow bar at the top that says - "A web page is slowing down your browser. What would you like to do. Stop it. Wait." If I click wait, the pop up comes back. If I stop it, the page doesn't load fully. This happens every single time, it's not intermittent and it's not happening with that website on any of the other browsers I have - MS Edge, Chrome, Opera. No other website I use causes this in Firefox. The website is https://www.heraldscotland.com