Claude now has a browser built into Claude Cowork on the desktop app. When a task needs to use a website, a browser opens in the side panel and Claude navigates webpages, reads them, clicks, and types. You can now hand off the web part of the task and stay where you are: Claude can fill in a form, pull numbers from a dashboard, or work through a portal that has no connector. No extension, no setup, and nothing shared from your own browser unless you choose to.
Until now, giving Claude the ability to use the web in Cowork meant giving it access to your browser through the Claude in Chrome extension. When the work is on a page you already have open, that's still the right choice. But a lot of web tasks don't need your browser, just a browser, and now Claude has one.
It's rolling out this week to Pro, Max, and Team plans in the Claude desktop app. Enterprise admins can turn it on for their organization starting today.
Which browser, when
It's Claude's browser, not yours. The built-in browser is separate from your own. Claude never sees your tabs, bookmarks, or passwords. To stay signed in to your sites, you can bring your logins over site by site, from Chrome, Edge, or Firefox on macOS and from Firefox on Windows and Linux. Banking, email, and single sign-on sites are left out unless you choose to include them.
Starting today, Claude for Teachers is available to schools and districts as a free Enterprise offering. School and district leaders can now bring educators and staff into one centrally managed organization under a single set of K-12 Terms, with enterprise features like single sign on, role-based access controls, and domain claiming.
Information is the resolution of uncertainty.
To protect your safety and privacy, there are some topics that Claude does not store even when you have sensitive topics in memory turned on. This includes sensitive identification numbers (SSN, government ID numbers, etc), criminal history, immigration status, or anything that violates our Acceptable Use Policy (AUP) in its memory. Claude will inform you when it's unable to update memory to include any of this information. Visit the Help Center to learn more.
Getting started
Memory is on by default on Free, Pro and Max plans across web, desktop, and mobile. Note that saving sensitive topics in memory is off by default. On iOS and Android, update to the latest version of the mobile app to get the most recent updates. For Team and Enterprise, admins control availability for their organization, and memory is off for individual users until they turn it on.
Visit Settings > Memory to turn memory on and control what Claude remembers.
- Give Claude a task in your browser
- Work across tabs
- Continue the conversation in the desktop, mobile, and web apps
Measuring Claude’s robustness against prompt injection
We’ve tested these safeguards to ensure that Claude in Chrome is safe to use for browser-based work. Here, we report the results from our most recent evaluations.
On our initial evaluation testing Claude Cowork’s resilience against prompt injection attacks (first developed when we released the Claude in Chrome pilot), no attack succeeded against Claude Fable 5, Claude Opus 5, or Claude Sonnet 5 in the Cowork harness, even without the probes and classifiers discussed above.
- Claude
- GPT
- Deepseek
- Kimi
If you already use Claude in Chrome, it keeps working and stays your default; otherwise Claude uses the built-in browser. Switch anytime in Settings → Cowork → Preferred browser.
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