Apple logins universally do not work in Firefox. I am stuck with a spinning wheel. This problem is persistent across Windows 10 desktop and multiple Linux distributions (Kubuntu, POP OS, Debian). I have tried the following: * Clear cache * Clear history * Enable exception * Run in safe mode * Disable all addons None of these items work. EDIT: 10:52 AM 12-29-2020 fixed about:config user_pref("privacy.resistFingerprinting", false); user_pref("network.http.referer.XOriginPolicy", 0); https://www.reddit.com/r/firefox/comments/k6tghq/icloud_imgur_issues/