Omnibox is one of the best features of Google’s Chrome browser. It helps users to search and navigate from a common place, and combines the search box and the address bar into one single component. But on the other hand, it may worry privacy-conscious users, as the omnibox entries may be logged by service providers while providing search suggestions etc. Thankfully, Chrome allows users to disable such features of omnibox, described in this tutorial.
Search & URL Suggestions, History and Bookmarks
When you start typing in the omnibox, it shows or auto-completes using three types of data: Search Suggestions and URL prediction provided by any provider (actually, Google), your browsing history and your bookmarked items. If you want to disable omnibox completely, you need to turn off or delete these three features.
You can clear browsing history by using the keyboard shortcut CTRL + SHIFT + DELETE as explained in this article. To remove bookmarks, open the built-in Bookmarks Manager of Google Chrome using the keyboard shortcut CTRL + SHIFT + O (O as in Omnibox, and not zero).
Disable Search Suggestions and URL Prediction
If you find omnibox’s search suggestions and URL prediction annoying, you can disable it from the Settings page of Chrome. Open the Settings page from the main menu of Chrome, scroll to the bottom and click on the “Show advanced settings …” link.
Now, under the Privacy section, uncheck the option “Use a prediction service to help complete searches and URLs typed in the address bar”. This should disable the search suggestions and URL prediction in the omnibox.