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In Firefox 38.5, how do I ensure it will only use tls 1.2 and not fallback to lower versions or ssl?

Firefox Sekretess och säkerhet
mmarino besvarat
mmarino
mmarino

I'm using Firefox 38.5 on CentOS 5.6. My current settings in about:config are as follows: security.tls.version.fallback-limit = 3 security.tls.version.max = 3 security.tls.version.min = 1

Are these settings already correct to only allow tls 1.2 or do I need to change the min value to 3 as well?

I'm using Firefox 38.5 on CentOS 5.6. My current settings in about:config are as follows: security.tls.version.fallback-limit = 3 security.tls.version.max = 3 security.tls.version.min = 1 Are these settings already correct to only allow tls 1.2 or do I need to change the min value to 3 as well?

Alla svar (2)

cor-el
cor-el
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Vald lösning

You would have to set security.tls.version.min = 3 if you really only want to enable TLS 1.2 Note that this will break servers that do not support TLS 1.2

0 means SSL 3.0, 1 means TLS 1.0, 2 means TLS 1.1, 3 means TLS 1.2 etc.

Ändrad av cor-el

mmarino
mmarino Frågans ägare

Thanks - excellent answer.