How can I view the key-exchange protocol in Firefox

Question

I set Firefox to use certain type of ciphersuites through config:about. For example, only ciphersuites with DHE key-exchange. Now, I connected to an SSL web server. I need to know which ciphersuite exactly used, in particular, I want to make sure that Firefox negotiated DHE key-exchange. How can I find this piece of information ? I can find this information using Chrome, but I do not know how to configure Chrome.

Answer 1

If you click the padlock on the https page that you have open when you click on "More information", the technical details at the bottom will say which Cipher Suite Firefox is using to establish the connection. You could also use a add-on called CipherFox https://addons.mozilla.org/en-US/firefox/addon/cipherfox/?src=search

Good luck!