Not working at all. As soon as I go to wikipedia.org, the browser just appears to reload a blank page rapidly and continuously until I close the tab.

Firefox 64bit with auto-updates on, running on Windows 10. No other Wikipedia extensions installed.

When I open the website it just keeps reloading.

Latest update is causing an infinite redirect

Headers and menu items are hard-coded to use, I quote, 'Iowan Old Style, Sitka Text, Palatino, Book Antiqua, serif' fonts. Since an ordinary PC has no such fonts, serif (usually it defaults to Times New Roman) is used, which is ugly.