On 11/25/18 5:35 AM, Alice Wonder wrote: > The "free for personal" S/MIME from Comodo didn't work. Browser said > it did but there was nothing to export for me to then import. I > suspect it is because I used private browser window, Probably, yes. I've used that service in the past without issue. > I really don't like the idea of a private key stored in browser > anyway. And it never asked for a password to encrypt the private key Setting a password will protect all of the certificates stored by Firefox. Select: Preferences -> Privacy and Security -> Security Devices (under Certificates) -> Software Security Device -> Change password Chrome may have a similar option, but I don't see it and I don't see documentation for it.\ > nor let me specify key strength (only let me choose between medium and > high - I assume high is 4096 but I don't know, it didn't say) There's very little harm in getting a certificate and examining it to find out. You can destroy it later with no ill effect.