I guess you mean the POODLE vulnerability of SSL3 as thats had the most
press lately.

You can manually disable SSL3 in Firefox's settings window (somewhere in
Advanced settings under a specific tab from memory - the PC I'm sending
this from can't even handle FF 3.6!). FF 3.6 (actually all Firefox versions
according to Wikipedia
(http://en.wikipedia.org/wiki/Transport_Layer_Security)) can deal in TLS 1.0
which supercedes SSL3 and is secure according to Wikipedia (though you might
want to look up the full details yourself if you want).
SNIP

Hi Computer Nerd,

I disabled SSL3.0 in Advance settings (FF3.6). TLS 1.0 is enabled.

BTW,

Some time ago, I switched from FF2.0 to FF3.6 because I got tired
of the frequent "Stop Script" prompts. Note: It happens once in a
while with FF3.6, but it isn't a nuisance.

Again Thanks, John