As of yesterday, I checked Firefox for an update by clicking "About Firefox/check for update" which then automatically installed Firefox v. 20. Awesome. There was no indication beforehand that after the installation my system (Mac OS X 10.6.8) would NOT be supported as far as the Java Applet Plug-in was concerned.
In other words, after using FF v. 20's proprietary Tools/add-ons check which links to https://www.mozilla.org, what happened was I found the latest Java Applet Plugin would not be supported for Snow Leopard and the browser "Status" was now "Vulnerable" and as we all know status vulnerable means problems.
Apparently Oracle will only support Lion and Mountain Lion from here on out - even though SL still has a massive user base.
So what's a guy to do? Upgrade my system to accommodate, billionaire Larry Ellison?
Perhaps I'll go with Opera instead.