Firefox 157 gets a new interface with bubble windows and a compact mode. Released on September 29, 2026, the browser offers more room on smaller screens and color customization.
The browser also includes a compact mode to optimize space on smaller screens. Released on September 29, 2026, Firefox 157 is available for Windows, macOS, Linux, Android and iOS. The update brings new themes and color customization, as well as improved WebRTC support with hardware AV1 decoding. HDR video playback has also been expanded.
The new look makes windows appear to float, with soft, curved edges. The compact mode reduces the space taken up on screen, leaving more room for other windows. This change helps people who use smaller screens or multitask. The update arrives on September 29, 2026. Firefox 157 is the browser's biggest visual update in years, focused on modernizing the interface and improving the experience on devices of different sizes. The new version brings bubble windows, a rounded address bar and a compact mode, features that were already present in earlier versions but now get greater prominence. The change aims to offer more room on small screens and allow color customization. Version 157 also includes improvements to WebRTC and HDR video playback, something competing browsers already offered, but now with more integration.
The compact mode adjusts the layout for smaller screens, allowing more efficient navigation when multitasking and on mobile devices. Hardware AV1 decoding in WebRTC improves video conferencing performance by reducing the load on the processor.
Comparison
Firefox 157 × Chrome 115
| Item | Firefox 157 | Chrome 115 |
|---|---|---|
| Design | Bubble windows and rounded address bar | Modernized interface with new colors and icons |
| Compact Mode | New compact mode for smaller screens | Existing compact mode, but reactivated |
Still unconfirmed
- Availability in physical or online stores not confirmed
- Details on compatibility with specific devices not mentioned
With information from macmagazine.com.br, theverge.com and canaltech.com.br.
Sources
- Firefox 157 chega com novo design volta do modo compacto e maismacmagazine.com.br
- Mozilla firefox 157 redesign compact modetheverge.com
- Novo visual do firefox da mais espaco para navegar e traz modo querido de voltacanaltech.com.br
- Mozilla devoile firefox 157 avec une nouvelle interface01net.com
- Firefox ganha nova visual e traz o modo compacto de voltatecnoblog.net
- Mozilla deploys a new look firefox across desktop and mobileengadget.com
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