Are you saying that you don't see the list of youtube Videos at the top of the web page, in the search results?
If so, what operating system are you running?
The plot thickens, though. I just discovered that in FIrefox, where I thought the rules worked, that the rules only work in my account. If I start with a fresh account, or start Firefox in my account, after I removed my Firefox preferences, that the rules don't work. I can't figure out what the difference is.
I'll have to see what happens if I try the same rules on a mac.