Anthropic recently announced the addition of a Chromium-based built-in browser feature to Claude's Cowork desktop application, supporting macOS, Windows, and Linux platforms. Paid Pro, Max, and Team subscribers can now directly enable Claude to access web pages and perform tasks in the work environment without relying on Chrome extensions. The built-in browser operates with an independent profile, not sharing user login status and browsing history, ensuring privacy and security. The system also strictly filters all write operations to external websites through a dedicated classifier, comprehensively blocking sensitive operations without explicit user authorization.