Firefox did away with the search bar a long time ago. For a while, it was possible to bring it back through about:config, but I don't think it's possible to make the url bar a clean url bar anymore (this is an invitation for corrections). It's annoying because I navigate to pages via URLs, and all I don't want to send those to a search engine for "suggestions" (though, a locally-indexed history is nice). All too often, I'll type in a url and it will send that to a search engine, and then the page I wanted to go to is buried under ads. Useless. Especially now that Firefox is moving to paid ads in the "url" bar... blech.