Firefox hates Flash (partly). Help?

Factual Questions
1

I’ve reinstalled FF after deleting everything I could find related to it, and I’ve installed the Flash plugin a few times. YouTube works in FF, and the MLB site works in Internet Explorer, but not FF. Cracked.com’s videos also don’t work in FF.

Since I’ve obviously installed Flash mostly correctly, as YT works in FF, and everything seems to work in IE, I’m stuck for ideas. Does anyone else have one?

2

Not just the flash plugin, you need flash itself.

http://get.adobe.com/flashplayer/

3

It sounds like he has Flash Player if the Flash content is working in IE, though.