# Extension no longer supported in second sidebar

**URL:** <https://forum.cursor.com/t/extension-no-longer-supported-in-second-sidebar/156491>\
**Category:** Bug Reports\
**Tags:** extensions, layout, agents-window\
**Created:** [April 2, 2026, 1:36pm UTC](https://forum.cursor.com/t/extension-no-longer-supported-in-second-sidebar/156491 "2026-04-02T13:36:12Z")\
**Posts on this page:** 1\
**Showing post:** 17

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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:** [April 22, 2026, 5:59pm UTC](https://forum.cursor.com/t/extension-no-longer-supported-in-second-sidebar/156491/17 "2026-04-22T17:59:32Z")

</div>

Glad you found a setup that works for you. About auto-update, honestly there’s no fully reliable way to turn it off. Here are a couple things you can try:

1. Settings `Cmd+,` then search `update mode` then set it to `none` or `manual` if you want to decide when to install updates. You can also set it in `settings.json`:

```json
"update.mode": "none"

```

2. On macOS you can also make the `.app` read-only using `chmod -R a-w /Applications/Cursor.app`, but this is a hack, and Cursor will complain when it tries to update.

One note: users reported that `update.mode` isn’t always respected, see [Cursor update regardless of the update settings](https://forum.cursor.com/t/cursor-update-regardless-of-the-update-settings/50289). So there’s no guarantee, and over time if you stay on 2.6 you won’t get bug fixes, and compatibility with new models and features may break.

A couple thoughts on the original Claude Code issue so you don’t get stuck on 2.6 forever:

- If the diff keeps opening in the same group as Claude Code, it usually means files are being opened from the Claude Code panel, not from Explorer. Try this: open the file from Explorer in the left group, then switch to Claude Code in the right group. After that, edits should keep going to the left group.
- In `settings.json` you can add `"workbench.editor.openSideBySideDirection": "right"`. This can help with Open to the Side.

If that doesn’t fix it, tell me the exact flow you’re using, where you open the file from, and where the edit comes from, and I’ll try to suggest something more specific.

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_[View the full topic](https://forum.cursor.com/t/extension-no-longer-supported-in-second-sidebar/156491)._