Gemini Spark, Google’s task-running AI agent, can now reach into Chrome and use the accounts you are already signed into — including the passwords saved in Chrome’s password manager — to finish jobs on the web on your behalf. Google announced the change on 30 July, alongside an expansion that puts Gemini Spark in front of Google AI Pro subscribers in more than 160 additional countries.
What Chrome auto browse in Gemini Spark actually does
Google calls the feature Chrome auto browse, and the point of it is sign-in walls. Google’s documentation describes two ways Spark can browse: through a remote browser in the cloud, where a task simply stops whenever a site asks you to sign in and waits for you to do it yourself, or through your own local Chrome, where Spark — in Google’s words — has access to all the same sites that you do, including sites you are signed into. The Chrome integration is what makes the second route possible. In Google’s own words from the announcement:
Now, with your permission, Spark can use your logged-in accounts and saved passwords to handle tedious web errands, like scheduling viewings for apartments you’ve saved or researching flight options and starting the booking process.
Google’s stated guardrails are that the connection is permission-gated, that Chrome asks before Spark is allowed to attach the first time, that every browsing task asks for confirmation after that, and that anything involving a payment is handed back to you rather than completed by the agent. Google also says the system defends against prompt injection — the attack where text on a web page tries to hijack an agent reading it.
The catch Android users should know first
Auto browse is not on your phone. Google’s support documentation is explicit that “Currently, only Gemini Spark in desktop Chrome can use auto browse,” and the blog post says the capability is “initially rolling out in the U.S. with plans to expand to additional regions in the future.” Spark itself is broader — it runs in the Gemini mobile app, the Gemini app on Mac, and the web app — but the headline credential-using feature is, for now, a desktop-Chrome-in-America story.
The local-browser route also has a practical cost Google spells out: your device and Chrome have to stay awake for the whole task. Close the laptop mid-errand and Spark may fall back to the remote browser to finish up.
Where Gemini Spark is available
- Subscription: a Google AI Pro or Google AI Ultra plan is required. There is no free tier.
- Regions: per Google’s help page, Spark is “Available wherever Gemini Apps are supported, except in the European Economic Area, Nigeria, Switzerland, and the United Kingdom.” Google does not explain the exclusions.
- Account: personal Google accounts only — work and school accounts are shut out for now.
- Other requirements: you must be 18 or over, and Keep Activity has to be switched on — meaning Spark will not run at all unless you let Google retain your Gemini activity.
Read Google’s own warnings before you switch it on
The most useful reading of this launch is not the blog post but the help page underneath it, where Google is noticeably more cautious than its marketing. It tells users to “avoid tasks or schedules that use information or perform actions that you find sensitive,” and warns that if a scheduled task fires while you are away, “you may not be able to stop Gemini from completing an unintended action.”
That is a fair description of the trade. Handing an agent your Chrome session is not the same as handing it a search box: Google’s documentation states plainly that when acting on your behalf, Spark will share necessary information with third parties, potentially including your name, contact details, files and preferences, and that with permission “it can also use login info you saved in Password Manager to sign into loyalty programs and online accounts.” A confirmation prompt protects you against a task you did not ask for. It does not protect you against a task you did ask for that goes somewhere you did not expect.
The practical advice, then, is narrow: try it on errands where a wrong answer costs you nothing — comparing flights, gathering listings — and keep it away from anything financial or medical. If you want it off on a given machine, the toggle lives under Settings, AI Innovations, Gemini in Chrome. And if you are in the UK or the EU, the decision has been made for you.
Google has been pushing Gemini into more places you already keep private material — including comment threads in Google Docs. The Chrome credential hook is the most consequential of those steps so far, and the one worth the slowest read.
