You may find more help here: Assign shortcuts to search engines. In Firefox settings>Search>Search Suggestions, uncheck Show search suggestions in address bar results and ahead of browsing history.How to Remove "Search With" from FireFox Address Bar (v58). In about:config, toggle the following preference to false to disable searching from the address bar unless you click one of the search engine options. Please consult the "Help" section of your browser for more information (e.g. Statistics show that over the last few years there have been more and more attempts to remove books from public libraries.