Hi, I'm using Claude Desktop on Windows with the Built-in browser selected unde…
Status Open
Maintainer reply None cached
Activity 1 comment · opened Oct 3, 2026
What happened
Hi, I'm using Claude Desktop on Windows with the Built-in browser selected under Settings > Cowork.
The Built-in browser works in regular chats, but when I use it inside a Project thread, Claude says the Built-in browser is unavailable and offers to inspect public websites from the server instead.
Could you help me understand why the browser works in regular chats but not in Project threads, and whether this is a known limitation or a bug?
Environment
- Filed from: Report a problem in Claude Code
- Project ID:
chan_01XjE5LXMCNE59WNEpVqP8Xb - Thread ID:
cmsg_01XjE5LXMCNE59WNEpVqP8XbTCx86ZKW8WwgUSEJC4YVzS
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