23 Daily — According to theverge.com, in October 2026, Mozilla updated Firefox’s AI-powered browsing feature, Smart Window, by adding an automatic online form-filling capability based on the content of open tabs. This update aims to enhance user efficiency by helping fill forms faster and more conveniently.

How Smart Window’s Auto-Fill Feature Works and Its Technology

Users can click on a form containing at least four text fields to see the “Fill from sources” option. Upon selection, Firefox displays all open tabs, allowing users to choose which tabs' content can be used for form filling. The browser then generates filling suggestions based on information in the selected tabs. Mozilla cites an example where Smart Window extracts work history from a user’s online portfolio or LinkedIn page to paste directly into a job application.

Currently, this feature supports text fields on web forms, with plans to add support for dropdown menus and PDFs. Data from source pages are shared with Google’s Gemini 3.1 Flash Lite AI model, which generates the text suggestions.

New Webpage Monitoring Feature Improves Information Tracking

Alongside auto-fill, Smart Window introduces a web monitoring function. Users can type “/watch” into the Smart Window chat, describe what to track, and add webpages to monitor. Firefox will then check the pages daily or weekly while the browser is open, looking for updates such as sales or new job listings.

When changes matching user criteria are detected, Firefox sends notifications via the Tasks button on the toolbar or desktop alerts. Monitoring pauses if no update is found for 60 days, and stops entirely after 90 days.

Editor's take: Extending AI Applications in Browsers Opens New Opportunities

These updates expand Firefox’s role from passive browsing assistance to proactive form filling and information monitoring. For entrepreneurs, this highlights AI browsers’ potential to enhance user productivity and optimize digital workflows.

To validate the practicality of these functions, one can assess the accuracy and speed of form auto-fill, as well as the timeliness and correctness of webpage monitoring alerts. Incorporating similar technologies can increase user engagement and differentiation, enabling new business models.