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Firefox Smart Window

Built-in Firefox AI assistant that answers questions about the page and open tabs and searches browsing history in natural language

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What Firefox Smart Window does

  • Built-in Firefox AI assistant that answers questions about the page and open tabs and searches browsing history in natural language
  • Switch models mid-chat: Google Gemini, Alibaba Qwen, OpenAI gpt-oss-120b, and Mistral Small 4 (added Sept 2026)
  • Free with no subscription; beta for macOS and Windows in the US, Canada and France, UK and Germany expected later
  • Conversations stay local by default; Mistral partnership uses zero data retention

Firefox Smart Window — straight answers

What is Firefox Smart Window?

Firefox Smart Window is listed under Browser Extensions & Copilots, in the AI Chat & Assistants category on Flocci AI Tools. Built-in Firefox AI assistant that answers questions about the page and open tabs and searches browsing history in natural language. It is free, with no paid plan attached, and it lives at firefox.com.

Is Firefox Smart Window free?

Firefox Smart Window is listed as fully free — there is no paid tier attached to it in the catalog. That makes it one of the 399 entries on Flocci AI Tools with no upgrade path built in.

What can Firefox Smart Window do?

Firefox Smart Window does 4 things the catalog singles out: Built-in firefox ai assistant that answers questions about the page and open tabs and searches browsing history in natural language; switch models mid-chat: google gemini, alibaba qwen, openai gpt-oss-120b, and mistral small 4 (added sept 2026); free with no subscription; beta for macos and windows in the us, canada and france, uk and germany expected later; conversations stay local by default; mistral partnership uses zero data retention.

What is the best free alternative to Firefox Smart Window?

Gemini in Chrome is the closest free alternative: it sits in the same Browser Extensions & Copilots sub-category and is free. Opera Browser AI (Aria), Page Assist and Brave Leo also start free. The full list is on the alternatives page.

See the full list →

Firefox Smart Window alternatives

Compare all alternatives →

Sider

Browser Extensions & Copilots
freemium
  • ChatGPT/Claude/Gemini in a browser sidebar
  • Summarize any page, PDF or YouTube video
  • Translate, rewrite and explain selections
  • Works across every website
Visit

Monica

Browser Extensions & Copilots
freemium
  • All-in-one AI copilot for the browser
  • Access to GPT, Claude & Gemini
  • Writing, translation and search tools
  • Desktop app and memo features
Visit

Merlin AI

Browser Extensions & Copilots
freemium
  • Works on any website
  • Summarize YouTube, articles and PDFs
  • Multiple frontier models in one place
  • Social-media reply generator
Visit

MaxAI.me

Browser Extensions & Copilots
freemium
  • One-click rewrite, reply and summarize
  • Chat with any page or image
  • Instant translation and grammar fixes
  • Prompt library built in
Visit

Harpa AI

Browser Extensions & Copilots
freemium
  • AI web automation and monitoring
  • Track prices and page changes
  • Scrape and summarize sites
  • Custom command workflows
Visit

Brave Leo

Browser Extensions & Copilots
freemium
  • Built directly into the Brave browser sidebar — no separate site, no account, no signup required for free tier
  • Access to Claude, Mixtral and Llama models without opening a separate chatbot site
  • Conversations never stored on Brave's servers and not used for model training
Visit

Head-to-head comparisons

Firefox Smart Window vs SiderFirefox Smart Window vs MonicaFirefox Smart Window vs Merlin AIFirefox Smart Window vs MaxAI.meFirefox Smart Window vs Harpa AIFirefox Smart Window vs Brave Leo