Does the certificate have a basic constraints extension with CA:TRUE set? Firefox doesn't allow that for certificates used as ‘end entity’ certificates. You'll want to re-generate the certificate without the extension.

There is.

so I can totally ditch chromium/electron

GNOME Web isn't Chromium-based and does support PWAs, so it might work for your usecase.

Someone I know recently switched from automatic bathroom lights to manual ones. Remembering to turn them on isn't an issue, but months later everyone still forgets to turn them off.

And .box has been registered as a generic TLD now, so you could run into external .box domains.

They're not going to have open signups. It's government agencies only. Not that there's technically anything stopping Germans from joining the PR departments of our government agencies…

So what you're saying is that Twitter successfully kept out a bad actor.

It's a shame that most of the users they have left are also in that category, but hey, they seem to be working on it.

As far as I know you can't set exceptions on mobile Firefox yet. It's rather annoying.

These are all fine in the US, but in other countries not carrying proof of identity can get you into some trouble, as can refusing to talk to the police. Know your local laws.

Ah, I see. Looks like that should enable people to take individual domains off the list, too, if they want their extensions to work on just some of them.

Is there a list somewhere of these “quarantined” domains?

uBlock Origin seems to be included in the whitelist, so I'm sure the point of this isn't to show you ads.