Did you try to restart the computer or device and try again to see if that helps load the page?

I have done that several times but to no avail. I can be in the middle of an article when ir freezes for a few seconds and then continues. This occurs after the web page has already fully loaded.

What OS? What version of Firefox? Are you on WiFi or plugged in? Did you try 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 clear your browser cache? https://support.mozilla.org/en-US/kb/clear-cookies-and-site-data-firefox You can also try Refreshing Firefox. https://support.mozilla.org/en-US/kb/refresh-firefox-reset-add-ons-and-settings