[SOLVED] Firefox 93 and package mirrors

So on Firefox 93, I got a message that downloading two kernel packages was using an insecure connection. I was served the slackware.uk mirror for kernel-huge-5.14.10 and kernel-modules-5.14.10 (for current.) (it was via packages.slackware.com Because I clicked through from the main slackware site, or?

ETA: Latest chrome is blocking it, as well.

ESR shipped with current downloads it without issue.