Mozilla Releases Firefox 157 with Nova UI Enabled by Default

Mozilla has begun rolling out Firefox 157 via its FTP server. The Nova UI, previously an experimental flag, is now enabled by default, bringing rounder elements, pastel colors, and the return of compact mode. The build also adds hardware AV1 decoding for WebRTC, improves HDR playback and A/V sync, and removes the built-in Amazon search engine.

• Nova UI now on by default: rounder menus, tabs and address bar, pastel tint
• Compact mode returns, visual clutter reduced across the browser
• Hardware AV1 video decoding added for WebRTC calls
• Built-in Amazon search engine removed, HDR playback improved