Post #1422583

TIL that Firefox does not allow you to proceed past a revoked TLS certificate the way it will let you go past an expired one. I guess this is sensible; a revoked certificate is very likely to be dangerous. (I learned this from Let's Encrypt's article on the difficulties of maintaining test sites with deliberately broken TLS certificates, https://letsencrypt.org/2026/04/10/test-sites.html )