You need to set keyword. Enabled = false on the about:config page to disable searching via the location bar.To disable search in address bar, in about:config set the option keyword. The Search panel in Firefox Settings lets you customize your search options. You can also clear a single item from the autocomplete list using your keyboard. Firefox for Android lets you add, remove and change your default search engine. Learn to manage your search engines with just a few taps. How do I customize my settings? The guide explains how you can delete individual form suggestions or address bar locations from Mozilla Firefox and Google Chrome. Press the "Add" button and fill in the name, search engine url and a keyword (optional).