Hi Mozillian,
In this edition, we’re exploring the new Firefox design, Mozilla’s recent partnership with Mistral to expand choice in AI-powered browsing, and several ways to get involved with MozFest. You can join a livestream about the value of bringing open-source communities together in person, volunteer at MozFest in Barcelona, or take part in the latest privacy discussion from the Firefox community on Reddit.
Read on for the latest updates and opportunities to participate!
More modern. More flexible. Still Firefox.
Firefox 157 introduces a new Firefox design with updated colors, icons and themes that make the browser feel more modern while preserving the familiar Firefox experience. The release also brings back Compact Mode and adds easier theme selection, new wallpapers and more ways to customize the New Tab page. Underneath the new look, Firefox remains independent and open source, with built-in privacy protections and controls that let you decide how your browser works, including how AI features appear.
Mozilla and Mistral partner to expand AI choice
Mozilla and Mistral have announced a partnership aimed at increasing competition and preserving user choice in AI-powered browsing. As part of the collaboration, the open-source Mistral Small 4 model is coming to Firefox Smart Window Beta as a new option for users in the US and Canada. Smart Window Beta is also expanding to France with official French-language support, with additional European markets planned. Users can continue choosing from multiple AI models, reinforcing Firefox’s commitment to avoiding lock-in and keeping the web open to different technologies and providers.
Does open source need IRL? The case for MozFest
Is showing up in person important for open source? Join the Owners Not Renters livestream on Tuesday, September 29, to hear the story behind MozFest and explore why gathering in person still matters for open-source communities ahead of MozFest, taking place October 28–30 in Barcelona. Kali Villarosa (MoFo), Seher Shafiq (MoFo) and Brian Behlendorf (co-founded Apache) will join host Marcus Rein for an open conversation, followed by a live Q&A. Bring your questions and your hot takes!
MozFest call for Volunteers
From 28–30 October 2026, the Mozilla Foundation will host the Mozilla Festival in Barcelona, bringing together people from diverse fields to explore how we can work collectively to “re-wild” the web. To help bring the Festival to life, we’re building a team of volunteers. By joining, you’ll help deliver a major event in support of Mozilla’s mission while also having opportunities to participate in sessions throughout the three-day Festival.
From the Reddit Community
Privacy conversations are going mainstream, and Firefox has been at this for 20+ years. In light of a recent video making the rounds about the importance of privacy, the Firefox Team shared a rundown of built-in privacy features (ad blocking, tracking protection, encrypted sync, a free VPN, and more). Jump in at r/firefox and share your own privacy tips and configs!
P.S.
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