Just received a warning when I tried navigating to foobar's official website...
Warning: Potential Security Risk Ahead
Firefox detected an issue and did not continue to www.foobar2000.org. The website is either misconfigured or your computer clock is set to the wrong time.
It’s likely the website’s certificate is expired, which prevents Firefox from connecting securely. If you visit this site, attackers could try to steal information like your passwords, emails, or credit card details.
Seems to be working fine for me.
Windows 10, Edge, all patches applied.
Mike
It was borked earlier but has been fixed. I checked the date on the certificate and it was expired today - now it runs until 4th December. Looks to be a condition of using free certificates from Let's Encrypt.
https://letsencrypt.org/2015/11/09/why-90-days.html