The omnibox, located at the top of the Google Chrome interface, is the official name for the address bar and search box. While it is primarily used by developers, it has many capabilities beyond just searching for web addresses and running Google searches. By utilizing the omnibox, users can save time and easily switch between different apps and sites. Additionally, Google is constantly adding new features to the omnibox, such as the recent integration with Gemini AI. Some of the most useful features include the ability to chat with Gemini, perform conversions and calculations, check the weather, search through bookmarks, and even make notes within Chrome. With the omnibox, users can streamline their browsing experience and get things done more efficiently.