Mozilla is taking another page out of Chrome’s playbook by dropping an "iconic" section of its UI: Firefox 57 will use a single bar for searching and navigation. While the search bar will not be removed altogether, it is now considered redundant and will be disabled by default. Most Chromium-based browsers, such as Opera and Brave, have already adopted this configuration. Read More Hopefully, the search bar is easy to turn-on again. I think this is not a good idea since some people still like the Search bar. Some Firefox users maybe using Firefox because it is the only popular modern web browser which has a search bar unlike Chrome and Microsoft Edge which does not have a search bar.