Anthropic added a built-in browser to Claude Cowork in the desktop app

Archive entry: this covers an event from August 26, 2026, and we published it on November 8, 2026. The details come from sources dated at the time and may have changed since.

On August 26, 2026, Anthropic added a built-in browser to Claude Cowork in the Claude desktop app. According to the Claude blog post on the built-in browser, a browser opened in the side panel whenever a task needed a website, and Claude navigated pages, read them, clicked and typed there.

What changed

• The built-in browser needed no extension or setup. It was separate from the user's own browser, and Claude never saw the user's tabs, bookmarks or passwords.
• Logins could be brought 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 were left out unless the user included them.
• Existing Claude in Chrome users kept Chrome as their default browser. The choice could be changed under Settings → Cowork → Preferred browser.
• The built-in browser ran the same safeguards as Claude in Chrome, including checks that compared Claude's actions with what the user asked for.

Availability

Anthropic's post said the browser was rolling out to Pro, Max, Ultra and Team plans in the Claude desktop app. Enterprise admins could turn it on for their organization.

What it means for people who build with AI

Cowork users could delegate web tasks, such as pulling invoices from a vendor portal, without giving Claude access to their personal browser profile. They also decided which logins to bring over, one site at a time.

Sources

• Claude gets its own browser in Cowork (Anthropic (Claude blog), August 26, 2026, official)

Written with AI assistance, strictly from the sources listed above. Before it went live, automated checks verified its dates, sources and every language edition.