If you click on the little triangle next to the Word "Google" in the search bar, you should see a dropdown list of other search engines you can use.

If you have Google search as your home page, you can change it to some other site (or nothing at all) in your FF options.

I've already changed to another search. It's the Goggle search on the homepage that I want to change and I don't understand "FF options" Thanks for your help hixstone33