orange Firefox button > Options > Options > Security

or hit the Alt key to temporarily reveal the Menu Bar, which has the Tools menu item

thanks very much!

Your above posted system details show multiple Java Console extensions.
You can uninstall and remove Java Console extensions, you do not need them to run Java applets.

See:

• http://kb.mozillazine.org/Java#Multiple_Java_Console_extensions

I see that you have enabled SSL 2.0 and have disabled TLS 1.0

security.enable_ssl2 : true
security.enable_tls : false

Any particular reason for that setting?

i dont know what all that means! i did not change any settings that i know of or on purpose. should they be different? how do i change this?

You can check the ssl and tls prefs on the about:config page.

If any ssl or tls pref is bold (user set) then right-click that pref and choose "Reset" to reset the pref to the default value.

Paste this regular expression in the Filter bar at the top:

• /security.*ssl|security.*tls/

To open the about:config page, type about:config in the location (address) bar and press the "Enter" key, just like you type the url of a website to open a website.
If you see a warning then you can confirm that you want to access that page.
You can use the Filter bar at to top of the about:config page to locate a pref more easily.

• http://kb.mozillazine.org/about:config

what do those settings mean?

Most of them are ciphers that are used to contact via a secure HTTPS connection. Firefox allows to enable or disable individual ciphers if you do not want to use them and force others to use if possible.

See:

• https://developer.mozilla.org/en/Introduction_to_Public-Key_Cryptography