| Download | https://firefox.com/nightly |
| Download | https://firefox.com/nightly |

In January, we introduced our Nightly package for RPM-based Linux distributions. Today, we are thrilled to announce it is now available for Firefox Beta! Firefox Beta is great for testing ...
[Gecko] Competition, Innovation, and the Future of the Web - Why Independent Browser Engines Matter
https://blog.mozilla.org/netpolicy/2026/03/23/competition-innovation-and-the-future-of-the-web/
🦎️

Gecko matters because it ensures there’s an independent voice shaping how the internet evolves. Without Gecko, the landscape would be dominated by Apple and Google alone. From accessing information, communicating ...

Highlights Starting with Firefox 150, Firefox Desktop's theming internals have improved, allowing custom background images provided by built-in and custom themes to extend over the sidebar UI background - ...
RE: https://social.security.plumbing/@freddy/116194891893177620
Also look at that fine game of window tiling (bottom / top) AND Firefox side-by-side split tab view (left/right). Currently in preview with @firefoxnightly :)
Here's a quick rundown of what we delivered as part of Interop 2025, and what's planned for Interop 2026!
More details on the features and focus areas: https://hacks.mozilla.org/2026/02/launching-interop-2026/