I had reported an issue several months back regarding an issue with high memory/CPU usage on the site using Windows 10 and Firefox. Just wanted to report that the issue was with Firefox and was introduced in FF version 78.x.x. It caused a severe memory leaks with multiple FF addons. Happy to report that Mozilla has finally fixed the issue with the latest release (80.0.1). For those curious, the Bugzilla ticket was 1658571 and was primarily reported by Reddit Firefox users (although the issue didn't affect me on Reddit). Just want to thank Diz for checking back with me and am relieved the issue was browser/addon related and not an issue with the site. Thanks again Diz for all your hard work!