Firefox’s Smart Window adds AI form filling and webpage monitoring

Mozilla is updating Firefox's AI-powered Smart Window with a feature that fills online forms using information from your open tabs, such as an online portfolio or LinkedIn page, and shares source-page data with Google's Gemini 3.1 Flash Lite. Users can also type "/watch" in the Smart Window chat to have Firefox check specified webpages daily or weekly for sales, job listings and other updates, notifying them when a change is detected. Both features are rolling out to the Smart Window beta on desktop in the US and Canada, with other countries to follow in the "coming months."