Mistral and Mozilla partner to power Firefox Smart Window with Mistral AI models

Mistral and Mozilla have announced a new partnership to bring Mistral’s AI models to Firefox Smart Window, Mozilla’s AI browsing assistant currently in beta. Smart Window can help users interpret complex searches, recover previously viewed information and find relevant details across open tabs. Mistral models are now powering the feature in France and North America, with the United Kingdom and Germany expected to follow later in 2026.

The partnership focuses on privacy, user control and localized AI. Mistral says its models are being fine tuned for regional languages, dialects and cultural contexts so responses can better reflect local nuances. Smart Window conversations are not stored on Mozilla’s servers by default, while AI partners such as Mistral are required to follow a zero data retention policy.

The companies also frame the collaboration around open technology and sovereign AI. Mozilla provides Mistral with a consumer distribution channel beyond its traditional enterprise business, while Firefox gains access to Mistral’s open weight models. Both companies say the partnership is intended to expand localized AI experiences to more Firefox users worldwide.