Mozilla is rolling out the Firefox 157 redesign to all desktop and mobile users, refreshing colors, icons, and themes across the browser without hurting performance. The update adds flexibility through a returning Compact Mode, a theme picker with new themes and wallpapers, and a customizable New Tab page with pinned shortcuts. Firefox remains independent and open source, with built-in privacy protections and user controls, including over AI features, since the redesign renews rather than reinvents it.