What does Firefox Smart Window actually do for your open tabs?

The problem it tries to solve

You start researching a trip. Ten tabs later you close the laptop. Two days later you open it again and stare at a row of titles that all look similar. The browser knows which pages you visited and what you searched for, but it does not surface that context when you need it. Smart Window is Mozilla's attempt to make that existing context useful without sending it anywhere you did not approve.

It began as an experiment called AI Window last November. Beta testers used it to keep track of a train of thought or to find a page they remembered seeing but could not name. Those patterns shaped the broader experience now rolling out.

Three new capabilities

The first addition lets you ask a question while you are in the middle of a task. Through a partnership with Exa, Smart Window retrieves current web information and displays the sources inline. You do not leave the page you are on and you do not open a separate search results tab.

The second addition tackles tab clutter. Smart Window can suggest groups for related tabs and spot duplicates. A single click closes the extras. The grouping happens locally on the tabs you have open at that moment.

The third addition changes how history looks. Instead of a list of titles and URLs, you see visual previews of the pages. That makes it faster to recognize the one you want among several similar results.

How control works

Smart Window is optional. You decide when to open it, which tabs or history entries it may use for a given task, and which AI model powers the responses. Firefox's AI Controls panel provides a single switch to turn the whole thing off. The document does not say whether the model runs locally or in the cloud for each option.

Beta status remains. English only. U.S. and Canada only. Everyone else can sign up for notification.

What comes next

Mozilla says it is exploring ways to surface recent browsing journeys so you get a starting point when you return to a task later. Another area is form filling — using relevant information so you do not re-enter the same details repeatedly. You will stay in control of which tabs you share. No timeline is given for either capability.