Microsoft is testing an integrated side-by-side web browser in the Copilot desktop app for Windows and macOS, enabling users to view web pages alongside AI sessions with multi-tab support. Available now for administrators via the BrowsingEnabled policy, wider rollout is expected by late November. A September 21 update adds a right-click option to open links externally. Data including history and cookies is stored locally in the user profile directory, requiring enterprise admins to assess compliance with internal security policies.