Where, oh where, did my flash blocker go?

I’m using Firefox 1.0.2 and I had Flash Blocker installed. The other day, I’m not sure what happened, I was asked to create a profile. I clicked on default. This has happened before, but I don’t recall how I fixed it.

Now the Flash Blocker extension is gone. I tried to reinstall the extension, but I got an error stating the extension was “not a valid install package”.
Wot happened?

Emily Litella: Never mind.
Fixed it.