Go to settings > Search > And remove google from the search engine alternatives. Don't just uncheck; Purge it. PURGE!In Firefox settings>Search>Search Suggestions, uncheck Show search suggestions in address bar results and ahead of browsing history. The simplest method to remove this parameter is to use another searchengine than Google. The Search panel in Firefox Settings lets you customize your search options. Find out how to turn off the "search with" and "visit" suggestion that the Firefox browser displays when you type in the address bar. Simply use the arrow keys to rollover the suggestion you no longer want to see, and hit Shift Del to delete it. Just start typing in the address bar. Suggestions from your browsing history, bookmarks, and tabs will be listed, underneath what you've typed. Remove Google from the list of search engines.