LeetCode VS Code Auth Sync per wilmtang

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.