Firefox 3.0.1 question
 

When I try to play many video's I get,
You need to Enable Javascript to View this Video

When I go to tools/options/contents I have enable java and enable java scrip are checked.

What else can I do?

I don't get that problem with my FF3. Do you get the same result when using IE7? Maybe you have a plugin thats messing things up for you.

IE7 works fine.

Did you install java before you installed FF3? Just guessing but if so maybe the java installation only installed a IE specific plugin. Tried reinstalling java to see if you can select to choose a plugin for Firefox as well?

Does this hint help: macosxhints.com - A fix for Flash not working on some sites in Firefox?