Comment by superkuh

Self signed certs are the standard for mailservers and work just fine as they have for the last 25 years.

Just like self-signed certs worked for 20 years until the megacorps decided to break people's browsers because only their for-profit use cases matter. You might not remember, but random self signed certs worked for a long, long time. I use them. And their purpose is as a speed bump against massive passive surveillance, something that still works. TOFU works. ID isn't actually needed for most personal use cases on the web. That's a corporate thing. HTTP+HTTPS (self signed) is the perfect combo for human person use cases. And much more robust than HTTPS only which will break within a year or two left unwatched by human eyes.

The misunderstanding Chrome and it's followers (like firefox) removed was that they were for anything except corporate use cases.