Loading browser/app/profile/001-base-profile.js +12 −0 Original line number Diff line number Diff line Loading @@ -64,6 +64,18 @@ pref("media.memory_cache_max_size", 16384); pref("dom.security.https_only_mode", true); pref("dom.security.https_only_mode.upgrade_onion", false); // Require Safe Negotiation ( https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/27719 ) // Blocks connections to servers that don't support RFC 5746 [2] as they're potentially vulnerable to a // MiTM attack [3]. A server without RFC 5746 can be safe from the attack if it disables renegotiations // but the problem is that the browser can't know that. Setting this pref to true is the only way for the // browser to ensure there will be no unsafe renegotiations on the channel between the browser and the server // [STATS] SSL Labs (July 2021) reports over 99% of top sites have secure renegotiation [4] // [1] https://wiki.mozilla.org/Security:Renegotiation // [2] https://datatracker.ietf.org/doc/html/rfc5746 // [3] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3555 // [4] https://www.ssllabs.com/ssl-pulse/ pref("security.ssl.require_safe_negotiation", true); // Misc privacy: Remote pref("browser.send_pings", false); pref("geo.enabled", false); Loading Loading
browser/app/profile/001-base-profile.js +12 −0 Original line number Diff line number Diff line Loading @@ -64,6 +64,18 @@ pref("media.memory_cache_max_size", 16384); pref("dom.security.https_only_mode", true); pref("dom.security.https_only_mode.upgrade_onion", false); // Require Safe Negotiation ( https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/27719 ) // Blocks connections to servers that don't support RFC 5746 [2] as they're potentially vulnerable to a // MiTM attack [3]. A server without RFC 5746 can be safe from the attack if it disables renegotiations // but the problem is that the browser can't know that. Setting this pref to true is the only way for the // browser to ensure there will be no unsafe renegotiations on the channel between the browser and the server // [STATS] SSL Labs (July 2021) reports over 99% of top sites have secure renegotiation [4] // [1] https://wiki.mozilla.org/Security:Renegotiation // [2] https://datatracker.ietf.org/doc/html/rfc5746 // [3] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3555 // [4] https://www.ssllabs.com/ssl-pulse/ pref("security.ssl.require_safe_negotiation", true); // Misc privacy: Remote pref("browser.send_pings", false); pref("geo.enabled", false); Loading