Firefox's Smart Window AI Now Pulls Live Web Data and Cites Sources
Mozilla announced on August 18, 2026, that AI chats within Firefox's Smart Window browsing mode can now draw on current web information and display source links in chat responses. The capability comes through a partnership with Exa, a search infrastructure provider. Smart Window, an opt-in beta feature previously known as AI Window, uses AI to help users with tasks like quick definitions, article summaries, and product summaries while browsing. The Verge
The feature was initially announced last year as AI Window, a browsing mode designed to let users search through open tabs or browser history using natural language — plain conversational phrases instead of exact keywords. Mozilla rebranded it to Smart Window and expanded its capabilities in subsequent releases. Earlier this year, Mozilla's blog described the feature as providing quick help while browsing, including article and product summaries. The Verge Mozilla Blog
Smart Window can automatically suggest tab groups and show visual previews of previously visited pages when users search their browsing history using natural language. The suggested tab groups can also find and close duplicate tabs. An official product page describes Smart Window as a new take on AI built into Firefox that works with the user's open tabs to give better answers faster. The Verge Firefox.com
Users can choose which AI model Firefox Smart Window uses, including Google's Gemini 3.1 Flash Lite, OpenAI's oss-gpt-120b, Alibaba's Qwen3-235B-A22B-Instruct-2507, or their own local AI models — meaning models running on the user's own hardware rather than on a remote server. Steve Truong, Firefox AI senior staff product manager, said the AI models available in Smart Window operate under zero-data-retention contracts with third-party providers. These providers process prompts in memory and do not store them for training, advertising, or human review. Mozilla also does not retain user chats on its servers without user permission for purposes like model training, human review, or advertising, according to Truong. The Verge
Mozilla has added an AI Controls section to Firefox's settings where users can turn off all of the browser's AI features or choose which ones to leave on. Mozilla's head of Firefox, Ajit Varma, confirmed that Smart Window is an opt-in beta feature with no precise date for leaving beta. The AI Controls section was first announced in December 2025 as a kill switch so users can disable AI functionality. Future updates to Smart Window will add Chrome-like surfacing of recent browsing journeys and AI-powered autofill for online forms. The Verge Thurrott.com
The broader context here is that Mozilla is staking out a distinct position on data governance. The zero-data-retention contracts with third-party model providers and the decision not to retain user chats on Mozilla servers without permission set a privacy posture more commonly associated with enterprise software agreements than consumer browser features. For technology professionals evaluating AI-integrated tools, the ability to route prompts to local models or select among hosted models under strict data handling terms addresses a recurring concern about prompt data leaking into training pipelines or advertising profiles.
The partnership with Exa for live web grounding — meaning the AI pulls information from the current web rather than relying solely on what it learned during training — and source linking moves Smart Window beyond static model knowledge. That limitation has constrained browser-integrated AI assistants up to now. Grounding chat responses in current web information with source links brings the feature closer to the workflow of research-oriented users who need verifiable citations rather than unconstrained generation.
Mozilla's approach also reflects a broader industry pattern of giving users granular control over AI features. The AI Controls settings panel, allowing users to disable all AI features or toggle specific ones individually, mirrors the opt-in philosophy Mozilla adopted for other contested features in the past. Having watched my own children navigate browser-based tools during their school years, the instinct to keep AI assistance opt-in rather than default-on feels like the right call for adoption, letting users who want the capability turn it on without forcing it on those who do not.
The model selection on offer spans a notably diverse set of providers, from Google and OpenAI to Alibaba and local inference. This range suggests Mozilla is positioning Smart Window as model-agnostic infrastructure rather than tying the browser's AI capabilities to a single provider. For a tech-literate audience, the inclusion of local models alongside hosted options means users can choose privacy-preserving inference paths without leaving the browser's AI workflow.
The roadmap items, including Chrome-like surfacing of recent browsing journeys and AI-powered autofill for online forms, indicate Mozilla is building toward a broader AI-integrated browsing experience rather than a single chat sidebar. The journey-surfacing feature, in particular, would bring Firefox closer to Chrome's existing capability in this area.
Mozilla has not disclosed a timeline for moving Smart Window out of beta. The feature remains available as a public beta, and users can access it through the official product page. Firefox.com
The combination of live web grounding, model choice, zero-retention contracts, and granular controls positions Firefox Smart Window as a privacy-forward entry in the increasingly crowded browser AI space. Whether users adopt it at scale will depend on the quality of the AI experience and the utility of features like tab grouping and natural language history search in everyday browsing workflows.
