# Gmail MCP OAuth Browser Not Opening - Stuck in Auth Loop

**URL:** <https://forum.cursor.com/t/gmail-mcp-oauth-browser-not-opening-stuck-in-auth-loop/160933>\
**Category:** Bug Reports\
**Tags:** mcp, login\
**Created:** [May 18, 2026, 5:14pm UTC](https://forum.cursor.com/t/gmail-mcp-oauth-browser-not-opening-stuck-in-auth-loop/160933 "2026-05-18T17:14:31Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![deanrie](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/deanrie/32/1263_2.png) [@deanrie](https://forum.cursor.com/u/deanrie)\
**Post date:** [May 20, 2026, 7:27pm UTC](https://forum.cursor.com/t/gmail-mcp-oauth-browser-not-opening-stuck-in-auth-loop/160933/6 "2026-05-20T19:27:56Z")

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A post was merged into an existing topic: [Hosted Gmail MCP (user-gmail): Tools UI shows connected after logout/toggle, but Agent MCP tool calls return Unauthorized; OAuth reconnect never prompts](https://forum.cursor.com/t/hosted-gmail-mcp-user-gmail-tools-ui-shows-connected-after-logout-toggle-but-agent-mcp-tool-calls-return-unauthorized-oauth-reconnect-never-prompts/160234)

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_[View the full topic](https://forum.cursor.com/t/gmail-mcp-oauth-browser-not-opening-stuck-in-auth-loop/160933)._