Claude is turning its Chrome side panel into a full Cowork session, allowing browser-based tasks and conversations to follow users across Claude’s other apps.
Anthropic announced the change today. Conversations started in the side panel are now saved to Claude history and can be resumed from the Claude desktop, web, and mobile apps.
Skills and connectors already configured for an account also work from the browser without additional setup. Claude in Chrome can see the current page and act on it using a person’s existing browser logins. That includes clicking links, moving between pages, entering text, and filling out forms.
Anthropic’s example involves asking Claude to collect invoice details from several vendor portals, build a spreadsheet, then continuing the same session on desktop to add local files or compare the result with a previous budget.
Your Claude in Chrome sessions now carry over to desktop, web, and mobile. Conversations are saved, and your skills and connectors work in the browser.Available on Max and Team today, rolling out to Pro in the coming weeks. pic.twitter.com/Hnxs18PVI8
The update closes a gap in Claude’s browser workflow. Side panel sessions previously remained separate from sessions in Claude’s other apps, leaving their conversations and context behind.
Anthropic recently highlighted Claude Code’s in-app browser, which uses an isolated profile. By comparison, the Chrome extension works with websites where the user is already signed in.
Anthropic warns that browser agents remain vulnerable to prompt injection.
A separate check reviews consequential actions when automatic approval is enabled, while Claude still asks before actions such as purchases or sharing personal data.
The company says these safeguards reduce risk but cannot eliminate it.
The Cowork side panel is available today for Max and Team customers, with a Pro rollout planned over the coming weeks. Enterprise administrators can enable it and restrict access to approved domains. Claude in Chrome does not yet support other Chromium browsers or mobile devices.
The release continues Anthropic’s push to make Claude’s work portable across surfaces.
Recent additions include live iOS app testing in Claude Code for Mac and new Opus 4.8 controls for longer-running work across more of its products and devices.
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Zac Hall is a Senior Editor, covering Apple, apps, and AI. He joined 9to5Mac in 2013.
