Claude’s Chrome side panel is now a full Cowork session, allowing browser tasks and conversations to follow users across Claude’s other apps. Conversations started in the side panel are saved to history and can be resumed from the desktop, web, and mobile apps. Skills and connectors already configured work from the browser without additional setup. Claude can see the current page and act on it using existing browser logins, including 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 with a previous budget. The update closes a gap where side panel sessions previously remained separate from sessions in other Claude apps.

Anthropic warns that browser agents remain vulnerable to prompt injection. A separate check reviews consequential actions when automatic approval is enabled, and Claude 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.