Firefox on a Mac.
Site has slowed down tremendously, constantly getting spinning cursor, can't load threads or type easily as it takes forever to show up on the screen, because it's busy trying to load some ad. Lots of the b.scorecard.research and names like that listed at the bottom of the browser where it shows what it's trying to load. I can't see all the ads so don't know what it's trying to do after that is loaded, but it is doing something in the background, possibly autoplay videos, I don't know, but it takes up so much resource that it makes the page unusable. It has taken 5 minutes just to get this message typed. No other sites or applications running, and no problems with internet connection or any other sites.