# LeetCode Classic

> A browser extension to view LeetCode programming problems in old web UI

Canonical page: [https://chrome-stats.com/d/leetcode-classic](https://chrome-stats.com/d/leetcode-classic)

## Overview

- **ID:** `leetcode-classic`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Chandrakishor Singh
- **Category:** appearance
- **Daily users:** 1
- **Version:** 1.1.1
- **Last updated:** 2026-05-21
- **First published:** 2026-05-03
- **Size:** 247 KB
- **Data as of:** 2026-09-07
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/leetcode-classic/)
- **Website:** [https://github.com/chandrakishorSingh/leetcode-classic](https://github.com/chandrakishorSingh/leetcode-classic)

## Description

View LeetCode problems in old(classic) web UI.

Watch this to know how to use this extension: <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/116e67d7df578ba3662b6c9a08f866bcbd38ad4f9522216d3ea4f0360741fca3/https%3A//www.youtube.com/watch%3Fv=HlbYUIhk2uk" rel="nofollow">https://www.youtube.com/watch?v=HlbYUIhk2uk</a>
<ul><li>Limitations<ul><li>Only following sections of LeetCode can be viewed in classic UI<ul><li>Description</li><li>Hints</li><li>Submissions</li></ul></li><li>Below sections are not supported in classic UI<ul><li>Discuss</li><li>Solutions</li></ul></li></ul></li></ul>
This extension relies on LeetCode's platform continuing to serve the classic UI at the /classic/ URL path. If LeetCode removes or deprecates this endpoint, the extension will no longer function as intended.

Source Code: <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/9d723563794186e989b905f51d2f11fb685eba785f3f467cb44f58f47d046503/https%3A//github.com/chandrakishorSingh/leetcode-classic" rel="nofollow">https://github.com/chandrakishorSingh/leetcode-classic</a>

## Rankings

- #123,064 — Overall
- #40 — leetcode

## Permissions and access

### Permissions

- `webNavigation`
- `storage`

### Host permissions

- `https://leetcode.com/*`

## Safety

- **Risk impact:** Low risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Allows retrieval of a user’s browsing history, presenting a notable privacy risk.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/leetcode-classic)