# New chat window clears open browser tabs; plus glitches with browser tabs not showing

**URL:** <https://forum.cursor.com/t/new-chat-window-clears-open-browser-tabs-plus-glitches-with-browser-tabs-not-showing/165025>\
**Category:** Bug Reports\
**Tags:** browser, chat\
**Created:** [July 7, 2026, 12:13pm UTC](https://forum.cursor.com/t/new-chat-window-clears-open-browser-tabs-plus-glitches-with-browser-tabs-not-showing/165025 "2026-07-07T12:13:20Z")\
**Posts on this page:** 1\
**Showing post:** 19

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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/new-chat-window-clears-open-browser-tabs-plus-glitches-with-browser-tabs-not-showing/165025/19 "2026-07-28T11:21:35Z")

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Related but different symptom from chat-scoped browser tabs: on 3.13.21 we also saw **cross-workspace** attachment — a project-workspace agent’s `browser_tabs` listed/controlled Home/empty-window Browser Tabs (`stable-browser-session/<home-workspace-id>`).

Filed: [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)

Sibling reports from the same investigation:

- [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)

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_[View the full topic](https://forum.cursor.com/t/new-chat-window-clears-open-browser-tabs-plus-glitches-with-browser-tabs-not-showing/165025)._