@Craig Long - I use Firefox by default and, though I used OpenDNS for quite some time, I currently use Cloudflare.
It's been a better experience overall as OpenDNS was beginning to give me problems.
I don't recall what at the moment.
I switched last year.
@Craig Long - According to https://support.mozilla.org/en-US/questions/1179909, I might not want to leave security.ssl.enable_ocsp_stapling disabled (false) indefinitely.
Ultimately, it is a server issue; not a browser issue.
Thus, YouTube admin need to know it's happening.
YouTube has been giving me this error a lot lately:
Secure Connection Failed
An error occurred during a connection to www.youtube.com. SSL received a malformed Server Hello handshake message.
Error code: SSL_ERROR_RX_MALFORMED_SERVER_HELLO
The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
Please contact the website owners to inform them of this problem.
It usually corrects itself within, say, ten minutes or so, but it's still annoying.