Custom New Tabs (CNT) is a Firefox add-on designed to enhance your browsing experience by allowing users to set a specific URL that opens each time a new tab is created. This functionality replaces the default about:newtab page with a user-defined webpage, making it easier to access frequently visited sites or preferred content directly. Users can choose from various URLs, such as Wikipedia's random page or Google, ensuring quick access to information or search options with each new tab.

The add-on is free and falls under the personalization category, making it an excellent choice for those looking to tailor their browsing experience. With CNT, users can streamline their workflow by eliminating unnecessary clicks and navigating directly to their desired sites. This tool is ideal for anyone wanting to optimize their Firefox new tab functionality.