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# Mistral and Mozilla are bringing open, private and multilingual AI to your web browser
September 16, 2026
By Mistral and Mozilla
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Today, we are announcing a partnership with Mozilla to bring privacy, control and choice to people using AI to browse online.
[Firefox Smart Window](https://blog.mozilla.org/en/firefox/firefox-smart-window/) (beta), Mozilla’s AI browsing assistant, is now powered by Mistral models. Smart Window helps you make sense of complex searches, remember something important you clicked away from and source information important to you based on your browser tabs. Mistral will help power Smart Window for users in France and North America, with the United Kingdom and Germany expected to follow later this year.
This partnership represents two open source advocates working together to bring Mistal’s scientific innovations to consumers around the world. We are building AI systems that are trained and fine-tuned on regional languages, dialects and cultural context, so anyone can get responses that understand their local nuance.
This announcement is important to the global AI ecosystem for four reasons:
1. **Open technology needs open distribution:** Mozilla has spent more than two decades fighting for an open web and Mistral has been releasing open weight, frontier models since our first release. This partnership is about demonstrating the potential of open source to serve people around the world.
2. **AI optimized for local countries and cultures, not exported to them:** We’re fine-tuning our models on regional languages and dialects so that everyone, no matter where they are or how they communicate, can benefit from AI that understands their local nuances. This partnership extends this capability to people who use Firefox worldwide so that their AI experience feels native to them.
3. **Giving people control of their interactions with AI:** Firefox has a long history of control and privacy in its DNA, and these are values we share at Mistral. Our partnership is rooted in a shared commitment to user choice, control and openness. Together, we’re blending Firefox’s privacy-first legacy with Mistral’s cutting-edge open models to give people autonomy over their browsing experience. Privacy protections are built into how Firefox Smart Window works: conversations aren’t saved on Mozilla’s servers by default, and partners like Mistral agree to zero data retention.
4. **Putting sovereign AI in everyone’s hands:** At Mistral, we’re committed to putting sovereign AI in everyone's hands. While we traditionally focus on serving the enterprise, by partnering with ecosystem leaders like Firefox, we extend beyond businesses and reach their consumers worldwide. This way, end users can benefit from our technology that’s rooted in user control, transparency and open innovation.
You can learn more about Smart Window [here](https://www.firefox.com/en-US/smart-window/?view=download).
AI is becoming part of how people experience the web every day. We want to make sure that doesn’t mean people are chained to one company’s self-serving pipeline. With the browser sitting at the heart of the web and online experience, it should be a place where different AI providers can compete and open source has a seat at the table. This isn't just a product partnership. A browser shouldn’t be a one-way funnel. It should preserve what made the internet powerful to begin with: the freedom to explore, discover different ideas and tech, and decide for ourselves where to go next.
Anthony Enzor-DeMeo, CEO, Mozilla Corporation
This partnership represents two open source advocates working together to bring Mistral’s scientific innovations to Mozilla’s consumers around the world. Together, we are bringing privacy, control and choice to AI-powered web browsing.
Arthur Mensch, co-founder and CEO of Mistral
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