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Preview of LeetCode VS Code Auth Sync

LeetCode VS Code Auth Sync by wilmtang

Syncs your signed-in leetcode.com browser session to the LeetCode with Auth Sync VS Code extension on localhost.

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About this extension
Unofficial companion browser extension for LeetCode with Auth Sync. It is not affiliated with, endorsed by, sponsored by, or published by LeetCode.

How to use it:
1. Install the VS Code extension from https://marketplace.visualstudio.com/items?itemName=wilmtang.vscode-leetcode-auth-sync
2. Install this Firefox add-on on the same machine.
3. Sign in to https://leetcode.com/ in Firefox.
4. In VS Code, click LeetCode: Sign In and choose Auto Cookie Sync.
5. In this add-on popup, click Expire now, then open or refresh any leetcode.com page so the next real LeetCode request syncs cookies and browser request headers to VS Code.

How it works: the VS Code extension starts a local listener on 127.0.0.1:17899. This add-on reads your leetcode.com cookies and sends the LeetCode Cookie header to that local listener, where VS Code reuses the existing cookie login flow. Cookie values are sent only to the local VS Code listener and are not intentionally logged.
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Permissions and data

Optional permissions:

  • Access your data for leetcode.com
  • Access your data for 127.0.0.1

Required data collection, according to the developer:

  • Authentication information
  • Website content
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Version
0.1.5
Size
25.09 KB
Last updated
3 days ago (Jun 8, 2026)
Related Categories
  • Other
License
MIT License
Version History
  • See all versions
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