Windows home or pro and what security software are you running besides MS Defender? What version of Firefox? Who are you using for DNS? Do you have the same issue with Firefox in Troubleshoot Mode? https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode#w_how-to-start-firefox-in-4troubleshoot-modesf5safe-modesf Did you try clearing the browser cache? https://support.mozilla.org/en-US/kb/how-clear-firefox-cache# I show a few sites plus your site load time for me from the east coast of US. see screenshots Here is the add-on I'm using to show load time. https://addons.mozilla.org/en-US/firefox/addon/load-time/