This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

How can I determine whether SSL 3.0 is enabled?

  • 2 replies
  • 1 has this problem
  • 1 view
  • Last reply by cor-el

more options

I'm trying to make sure SSL 3.0 and TSL 1.0 are both enabled on the newest verison of Firefox. I believe TSL is enabled by default. But what about SSL 3.0?

I'm trying to make sure SSL 3.0 and TSL 1.0 are both enabled on the newest verison of Firefox. I believe TSL is enabled by default. But what about SSL 3.0?

All Replies (2)

more options

hi ant0208, ssl 3.0 is a broken and therefore insecure protocol and modern browsers may no longer support it: https://tools.ietf.org/html/rfc7568

more options

See also:

You can check these prefs on the about:config page.

security.tls.version.min = 1 (TLS 1.0)
security.tls.version.max = 3 (TLS 1.2)