Firefox previews upcoming UI redesign Project Nova with focus on customization and privacy

Mozilla has unveiled a preview of Project Nova, its forthcoming user interface overhaul for Firefox. The redesign promises a smoother and brighter look, with a strong emphasis on user customization. Early screenshots show rounded corners for tabs and interface elements, plus a reorganized layout that moves the user profile and settings menus to the tab bar. This change frees more space for the address bar and extension shortcuts.

Building on these visual adjustments, Mozilla is restructuring Firefox’s privacy controls. Enhanced Tracking Protection, the built-in VPN, and private browsing features are moving to more prominent, easily accessed positions. The settings interface is also being revamped with plainer language, easier data management, and new options for disabling AI features entirely or fine-tuning tracking protection for a preferred balance between security and usability.

Following these foundational upgrades, productivity-focused users will benefit from faster access to tab groups, split view, and vertical tabs, while compact mode will return for those wanting a denser interface. Mozilla plans to introduce new themes and wallpapers, along with additional future controls for the shape and style of tabs and components. Although most visible on desktop platforms, these updates will also extend to Firefox’s mobile browsers.