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)
- Browser Automation Off still shows pages in Glass Browser Tab via open_resource
- When cursor-ide-browser is missing, agent falls back to system `open` and focuses Brave
- Agent browser_tabs attaches to Home/empty-window Browser Tabs from a different project workspace
Also related (closed, cannot comment): Cursor-ide-browser MCP disconnects every ~5 minutes during heavy agent browser usage (mid-session lease / “server does not exist”).