Smart Window, the AI mode in Firefox's desktop browser that added a Mistral model choice in September, can now read the tabs you choose and use them to fill in the text boxes of a web form. It can also check a page every day or week and tell you when something you described has changed. Both features are in the beta for English speakers in the US and Canada, with other countries to follow in the coming months.
Autofill used to remember. Now it reads.
Browser autofill has always been a memory. You type your name and address once, the browser stores them, and it puts them back in the same boxes later. That works for the fields every form shares and fails on the ones that differ: the work history, the short bio, the paragraph about why you want the job. Firefox's ordinary autofill still handles the name and address without AI. The new part is for the free-text boxes, where Smart Window reads the pages you select and suggests what to write. You review and edit the result, and Firefox does not submit the form. The text of those pages goes to Google's Gemini 3.1 Flash Lite model, so choose tabs you are comfortable sharing.
Google is moving the same way. Chrome has a test version that pulls details from Gmail and Photos to fill forms. The difference is that Firefox asks you to name the sources, and Chrome's test goes looking through your account.
Once the browser can fill every box from a page you already wrote, a form stops being a chore and becomes a view of that page. A person applying for ten jobs a week might save an hour or two of copying and pasting, and that is the smaller effect.
The larger effect lands on whoever reads the forms
The cost of applying is what used to keep the pile small. When Easy Apply removed most of that cost, recruiters were left with piles they could not read closely. Smart Window extends the same drop in cost to every company's own application page, which was the slower route when Easy Apply arrived.
Picture a manager at a regional warehouse company hiring a shift supervisor. The form asks for a time the applicant handled a safety problem. Before, 40 answers showed 40 levels of effort. Now most are drafted from a profile, and an applicant whose profile has no such story gets a smooth, generic paragraph. The question still sorts people, but it now sorts profiles. What the manager actually wants to know, whether this person has done it, has to come from somewhere harder to draft: a 15-minute phone call, a small task, or a reference.
For the applicant the lesson runs the other way. The browser can only write from what is on the page, so a profile with specific numbers, names of tools and outcomes produces a strong draft, and a vague one produces a vague draft. Read every suggestion before it goes in.
Watching a page was already possible, now it sits in the browser
Services such as Visualping have for some time let you describe in plain words what change matters to you and ignore the rest. Smart Window brings that into the browser people already have open. You type /watch, describe what you want, such as a price drop or a listing with a certain job title, and add the pages. Firefox then checks daily or weekly and sends a notification from the Tasks button in the toolbar.
The limits decide what it is good for. It checks only while Firefox is open, and only once a day at the fastest, so it suits a sale that lasts for days or a job board that adds listings slowly. It will not catch a limited release that sells out in minutes. A shop owner could watch three supplier pages for a price change on a part they reorder each quarter and stop checking them by hand. Firefox pauses a task after 60 days without a match and stops it after 90, so a forgotten watch does not run forever.