What do the SSLv3 error messages mean on Firefox?

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  • Revision id: 81892
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  • Creator: Joni
  • Comment: Changed search summary. Still needs polishing and screenshots
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  • Reviewed by: heyjoni
  • Is approved? Yes
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Security Sockets Layer version 3 (SSLv3), a type of technology that allows your browser to connect to a server, is no longer secure. This makes it easy for hackers to extract personal information during a connection. Firefox blocks SSLv3 to protect you from these attacks.

When you open a page that still supports SSLv3, you will see this error message: "Unable to connect securely". You can still access that website by telling Firefox to use a more secure certificate such as TLS. Here's how to configure Firefox so it will connect using TLS instead of SSLv3:

  1. Type about:config in your address bar and press Enterreturn.
  2. Find the appropriate preference by entering security.tls.version.min in the search field.
  3. Change the security.tls.version.min setting to 1, then click OK to finish.
  4. Refresh the webpage to load it using the secure certificate.