Firefox updates Smart Window: A new in-browser AI assistant that can keep up with you
Mozilla shipped Smart Window updates to Firefox—privacy-first in-browser AI that summarizes tabs and search history without leaving your browser.

Why it matters
Firefox is adding native AI capabilities to compete with Chrome/Edge's AI-assistant ecosystems. Practitioners building browser-based workflows should evaluate whether this changes their recommendation calculus; privacy-first positioning is the differentiation.
The key facts
8 to knowSmart Window in beta; evolved from AI Window concept (November 2025)
Capabilities: answer checking, tab summarization, search history retrace
Privacy-first design (no details on architecture/local vs remote processing)
Part of Firefox's competitive response to Copilot/Chrome AI integrations
Firefox Smart Window now in beta with tab summarization and search history features
Evolution of AI Window concept from November 2025
Privacy-first architecture (data handling model not detailed in excerpt)
Competitive positioning against Chrome and Edge AI features
Go to the source
SiliconAnglesiliconangle.com
Publisher excerpt: Mozilla Corp. rolled out updates today to its popular Firefox browser, updating an artificial intelligence assistant called Smart Window, currently in beta, that lets users check answers, summarize open tabs and retrace search history. Smart Window is the evolution of an earlier concept introduced…