--- title: Mozilla adds Mistral Small 4 to Firefox Smart Window as... description: Mozilla and Mistral AI have partnered to bring Mistral Small 4 into Firefox's Smart Window, an AI-assisted browsing beta feature that summarizes searches,... canonical: https://daily.dev/posts/mozilla-adds-mistral-small-4-to-firefox-smart-window-as-it-launches-in-france-twue8chqw twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Mozilla adds Mistral Small 4 to Firefox Smart Window as it launches in France | daily.dev og:description: Mozilla and Mistral AI have partnered to bring Mistral Small 4 into Firefox's Smart Window, an AI-assisted browsing beta feature that summarizes searches,... og:url: https://daily.dev/posts/mozilla-adds-mistral-small-4-to-firefox-smart-window-as-it-launches-in-france-twue8chqw og:image: https://api.daily.dev/og/posts/twUE8CHqW.png og:image:alt: Mozilla adds Mistral Small 4 to Firefox Smart Window as it launches in France og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Mozilla adds Mistral Small 4 to Firefox Smart Window as it launches in France **[The Next Web](https://daily.dev/sources/tnw)** · 3 min read · 0 upvotes · 0 comments ## Summary Mozilla and Mistral AI have partnered to bring Mistral Small 4 into Firefox's Smart Window, an AI-assisted browsing beta feature that summarizes searches, tracks tabs, and helps recover lost pages. The launch coincides with Smart Window's expansion into France, its first market outside the US and Canada, with the UK and Germany expected later. Smart Window still offers multiple model options beyond Mistral, keeps conversations unsaved by default, and requires zero data retention from model partners. Mozilla frames the deal as resisting AI vendor lock-in, while Mistral, fresh off a €3bn raise at a €21bn valuation, gains a consumer foothold beyond its enterprise and government customers. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### Which AI model did Mozilla add to Firefox Smart Window? Mozilla added Mistral Small 4 as one of the model options available in Firefox Smart Window, its AI-assisted browsing beta. Users can still choose from other models rather than being locked into Mistral alone. The addition coincided with Smart Window's launch in France, its first market outside the US and Canada, with the UK and Germany expected to follow. _Developers tracking how browsers integrate AI models can follow Firefox Smart Window updates on daily.dev._ ### Does Firefox Smart Window save my AI conversations? No, Smart Window conversations are not saved on Mozilla's servers by default. Model partners, including Mistral, agree to zero data retention as part of the arrangement. The feature also lets users control which open tabs and browsing history it can access, and it can be disabled entirely via a setting Mozilla added earlier. _Privacy-conscious developers evaluating AI browser features can keep up with changes like this on daily.dev._ ### In which countries is Firefox Smart Window available? Firefox Smart Window launched first in English in the US and Canada, then expanded to France with official French-language support as its first new market. The UK and Germany are expected to get the feature later, according to Mistral, as Mozilla and Mistral AI expand the AI browsing assistant internationally. _Anyone evaluating regional AI feature rollouts in browsers can track updates like this on daily.dev._ ## Similar posts on daily.dev - [I Tried Firefox Smart Window, and It Won Me Over a Little](https://daily.dev/posts/i-tried-firefox-smart-window-and-it-won-me-over-a-little-knpl8rrtm) · It's Foss · 35 upvotes · 7 comments --- Tags: [#llm](https://daily.dev/tags/llm), [#firefox](https://daily.dev/tags/firefox), [#mozilla](https://daily.dev/tags/mozilla), [#mistral-ai](https://daily.dev/tags/mistral-ai) [View this post on daily.dev](https://daily.dev/posts/mozilla-adds-mistral-small-4-to-firefox-smart-window-as-it-launches-in-france-twue8chqw) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Mozilla adds Mistral Small 4 to Firefox Smart Window as it launches in France","url":"https://daily.dev/posts/mozilla-adds-mistral-small-4-to-firefox-smart-window-as-it-launches-in-france-twue8chqw","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/mozilla-adds-mistral-small-4-to-firefox-smart-window-as-it-launches-in-france-twue8chqw"},"datePublished":"2026-09-17T12:04:39.425Z","dateModified":"2026-09-18T10:15:23.215Z","description":"Mozilla and Mistral AI have partnered to bring Mistral Small 4 into Firefox's Smart Window, an AI-assisted browsing beta feature that summarizes searches,...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/0f761a1974b1ad34a5fa8f7edf089924?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/0f761a1974b1ad34a5fa8f7edf089924?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"The Next Web","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"The Next Web","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/tnw","url":"https://daily.dev/sources/tnw"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/mozilla-adds-mistral-small-4-to-firefox-smart-window-as-it-launches-in-france-twue8chqw","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"llm,firefox,mozilla,mistral-ai","timeRequired":"PT3M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"The Next Web","item":"https://daily.dev/sources/tnw"},{"@type":"ListItem","position":3,"name":"Mozilla adds Mistral Small 4 to Firefox Smart Window as it launches in France"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/mozilla-adds-mistral-small-4-to-firefox-smart-window-as-it-launches-in-france-twue8chqw#faq","mainEntity":[{"@type":"Question","name":"Which AI model did Mozilla add to Firefox Smart Window?","acceptedAnswer":{"@type":"Answer","text":"Mozilla added Mistral Small 4 as one of the model options available in Firefox Smart Window, its AI-assisted browsing beta. 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