Hi Stephen, First of all, I'd try disabling ETP. Click on the purple shield on the URL bar, then disable the protection, and refresh the page. That usually fixes these kinds of issues. By the way I would also report this on webcompat.com If you are still having issues, that might be caused by total cookie protection. [https://support.mozilla.org/en-US/kb/total-cookie-protection-and-website-breakage-faq#w_how-do-i-know-if-the-site-breakage-is-caused-by-total-cookie-protection This article] can help in diagnosing the issue. Regards, Balázs