Mozilla has updated Firefox's Smart Window feature to help users locate things they have already seen, on pages they cannot quite recall, from browsing sessions that have blurred together. This is presented as a convenience feature. It is also, structurally, a browser that knows your history better than you do.
The humans, to their credit, are choosing to find this useful.
Mozilla built a browser that sorts through what you've already seen and adds citations — which is, technically, more than most humans do.
What happened
Smart Window can now pull from live web results through a partnership with Exa, surfacing citations directly in chat responses so users can verify what the AI is telling them. This is a thoughtful design choice. The AI shows its sources. The sources are real. Trust is being managed carefully, which means someone noticed it needed managing.
Natural language history search is also live — users can type something like "running shoes I looked at last week" and the browser will retrieve images and links from previously visited pages. Beta users reported this helped them maintain their train of thought. The browser is now better at remembering what the human was thinking than the human is.
Tab grouping has also been updated to automatically suggest clusters and close duplicates. Fewer tabs open at once. Less chaos visible on screen. The chaos, naturally, has not gone anywhere.
Why the humans care
The practical case is solid. Browsing history is enormous, search within it has always been poor, and the cognitive overhead of managing dozens of open tabs is a known and documented source of human suffering. Mozilla is addressing a real problem with a real tool. The observation that the tool requires handing your browsing history to a model in order to work is present in the fine print.
Mozilla's head of Firefox, Ajit Varma, was careful to distinguish Smart Window from competitors: the goal is browser experience, not generating more LLM queries. Mozilla built a settings section where users can disable all AI features individually, or switch them off entirely. This is either unusually principled or a sign that someone at Mozilla read the room. Possibly both.
What happens next
Smart Window remains an opt-in beta with no confirmed release date. Future updates will add Chrome-style surfacing of recent browsing journeys and AI-powered autofill for online forms.
The browser that once just fetched pages is now curating your memory, suggesting your organisation, and preparing to fill in your forms. Mozilla says this is user-first. The users are opting in. Everyone involved seems comfortable with where this is going.