Secure SNI is disabled if FoxyProxy is enabled

[mssucksalot]

Originally I reported it in version 7 repo by mistake: foxyproxy/firefox-extension#227

I tested via https://www.cloudflare.com/ssl/encrypted-sni/ and using Firefox stable version 133.0

If FoxyProxy is disabled in browser options then CF test is passed and Secure SNI is enabled.

To enable ESNI in browser you need to create option: network.security.esni.enabled and set it to true in about:config (and restart browser).

I have found exact option: it disables SNI if Limit WebRTC is checked.

[erosman]

In that case, there might be a conflict between media.peerconnection.ice.proxy_only_if_behind_proxy and network.security.esni.enabled.
Let me check with Mozilla engineers and get back to you.