# Firefox Smart Window

Built-in Firefox AI assistant that answers questions about the page and open tabs and searches browsing history in natural language. Firefox Smart Window is free, with no paid plan attached, at firefox.com.

## Facts

- **Pricing tier:** Free
- **Free limit:** Beta in US, Canada, France only
- **Works on:** In-app, macOS, Windows, Linux
- **Works in browser:** No
- **Sign-up:** Region-locked
- **Region note:** Beta in US, Canada, France only
- **Best free alternative:** [Sider](https://aitools.flocci.in/tool/sider)

## Capabilities

- 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

## FAQ

### 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?

Yes, it's free to use, but beta in US, Canada, France only If you need it free right now, Sider does the same job for free.

### Can I use Firefox Smart Window in a browser, or is there an app?

Firefox Smart Window needs to be installed or self-hosted — it doesn't run in a browser tab. It is available on inside another product, Mac, Windows and Linux. Beta in US, Canada, France only

### 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?

Sider is the best free alternative: it does the same job and you can start without paying. Gemini in Chrome, Opera Browser AI (Aria) and Page Assist also start free. The full list is on the alternatives page.

## Related

- [Firefox Smart Window alternatives](https://aitools.flocci.in/alternatives/firefox-smart-window)
- [Browser Extensions & Copilots](https://aitools.flocci.in/category/ai-chat-assistants/browser-extensions-copilots)
- [Best free AI browser extensions](https://aitools.flocci.in/best/best-browser-extensions-copilots)
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Source: Flocci AI Tools — https://aitools.flocci.in/tool/firefox-smart-window

Facts last verified: October 2026