[O1111OOO]

> https://taler.net/en/index.html

Firefox reports today (11nov18, 10:55am, PST):

> taler.net uses an invalid security certificate.

> The certificate expired on November 11, 2018, 2:13:27 PM GMT. The current time is November 11, 2018, 6:55 PM.

> This site uses HTTP Strict Transport Security (HSTS) to specify that Firefox may only connect to it securely.

[cyphar]

It works for me, seems like they fixed it. They use LetsEncrypt so must've messed up the auto-updating of the certificate. In my defence, I've done this before as well.