I've started getting another error message every time I open FireFox.

I click on the FireFox icon and immediately get a popup box with the error message. I click "OK", the message goes away, and I get the FireFox start screen.

The Message:
Javascript Application
TypeError: Components.classes['@softage.ru/skype/SkypeFfExtensions;1] is undefined.

I googled the terms, and found another reference to the same error message:
http://www.securitystronghold.com/gates/skype.html

It seems to me that Java undated itself just a couple days ago. That would be about the time this message started. Coincidence? Probably not.

I'd rather be sure of what I'm doing when I attack this, so I'll await instructions.