Browser tab is unavailable for agent

[Code_Ten]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

A browser in tab doesn’t work for agent. “No resources found / No MPC resources available”.

Steps to Reproduce

Type in chat “Open in @Browser http://localhost:8080”.

Expected Behavior

This should open a tab with browser.

Operating System

MacOS

Version Information

Version: 2.4.21 (Universal)
VSCode Version: 1.105.1
Commit: dc8361355d709f306d5159635a677a571b277bc0
Date: 2026-01-22T16:57:59.675Z
Build Type: Stable
Release Track: Early Access
Electron: 39.2.7
Chromium: 142.0.7444.235
Node.js: 22.21.1
V8: 14.2.231.21-electron.0
OS: Darwin arm64 25.2.0

Does this stop you from using Cursor

No - Cursor works, but with this issue

[condor (Condor (Tee))]

Hi @Code_Ten and thanks for the bug report.

Does anything change if you got to Settings > Tools & MCP > Browser Tab … turn off and on again?

[Code_Ten]

the same. maybe something new: starts Safari with “open …” from cli - annoying even more