# Cursor-ide-browser connected but exposes zero tools (browser\_tabs/browser\_navigate tool not found)

**URL:** <https://forum.cursor.com/t/cursor-ide-browser-connected-but-exposes-zero-tools-browser-tabs-browser-navigate-tool-not-found/158762>\
**Category:** Bug Reports\
**Tags:** browser, mcp\
**Created:** [April 23, 2026, 12:21am UTC](https://forum.cursor.com/t/cursor-ide-browser-connected-but-exposes-zero-tools-browser-tabs-browser-navigate-tool-not-found/158762 "2026-04-23T00:21:03Z")\
**Posts on this page:** 1\
**Showing post:** 12

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**Author:** ![jsolly](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/jsolly/32/33752_2.png) [@jsolly](https://forum.cursor.com/u/jsolly)\
**Post date:** [July 28, 2026, 11:21am UTC](https://forum.cursor.com/t/cursor-ide-browser-connected-but-exposes-zero-tools-browser-tabs-browser-navigate-tool-not-found/158762/12 "2026-07-28T11:21:27Z")

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Update from Cursor **3.13.21** (Darwin arm64): still seeing `MCP server "cursor-ide-browser" not found` / catalog-vs-runtime split, plus adjacent Browser Automation issues.

Filed separate Bug Reports (with cross-links) for the distinct symptoms:

- [Cursor-ide-browser catalog/disk ready but CallMcpTool returns "server not found" (3.13.21 cold-start)](https://forum.cursor.com/t/cursor-ide-browser-catalog-disk-ready-but-callmcptool-returns-server-not-found-3-13-21-cold-start/166850)
- [Browser Automation Off still shows pages in Glass Browser Tab via open\_resource](https://forum.cursor.com/t/browser-automation-off-still-shows-pages-in-glass-browser-tab-via-open-resource/166854)
- [When cursor-ide-browser is missing, agent falls back to system `open` and focuses Brave](https://forum.cursor.com/t/when-cursor-ide-browser-is-missing-agent-falls-back-to-system-open-and-focuses-brave/166855)
- [Agent browser\_tabs attaches to Home/empty-window Browser Tabs from a different project workspace](https://forum.cursor.com/t/agent-browser-tabs-attaches-to-home-empty-window-browser-tabs-from-a-different-project-workspace/166856)

Also related (closed, cannot comment): [Cursor-ide-browser MCP disconnects every ~5 minutes during heavy agent browser usage](https://forum.cursor.com/t/cursor-ide-browser-mcp-disconnects-every-5-minutes-during-heavy-agent-browser-usage/159736) (mid-session lease / “server does not exist”).

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