Hi, I'm not sure if I'm the only one, but the more I use https://open.spotify.com/ the slower / laggier it gets. What I mean, is that it works ok if you remove the cache for that website, but starts to get worse as time goes on. Sometimes it doesn't work completely outright. It does work properly in chrome - even after extented use. I have the same extensions applied on both firefox and chrome. Is anyone else experiencing these slow / lag issues on spotify? Thank you!