# Codeforces Custom Contests

> Create custom contests to improve speed, problem solving, and rating!

Canonical page: [https://chrome-stats.com/d/codeforces-custom-contests](https://chrome-stats.com/d/codeforces-custom-contests)

## Overview

- **ID:** `codeforces-custom-contests`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** AvDev
- **Category:** other
- **Daily users:** 27
- **Rating:** 4.67 / 5 (3 ratings)
- **Version:** 1.1.3
- **Last updated:** 2025-06-07
- **First published:** 2025-05-09
- **Size:** 456 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/codeforces-custom-contests/)

## Description

Create Custom Codeforces Contests & Improve Your Rating Faster!

Practice smarter, not harder. This extension lets you build personalized contests and analyze your performance to target your weaknesses and climb the ranks.

Features:
• Custom Contests - Choose the number of problems, difficulty range, and contest duration to match your goals (speed, problem-solving, endurance, etc.).
• Performance Analysis - See which problem tags and difficulty levels are holding you back with in-depth breakdowns of your past contests.
• Progress Tracking - Monitor improvements over time and fine-tune your training strategy with real data.

Why Use This Extension?
• Focus your practice where it matters most
• Eliminate guesswork in your training
• Build rating faster with targeted, data-driven prep

This is perfect for anyone looking to accelerate their growth on Codeforces, whether you're aiming for Expert or Grandmaster.

## Rankings

- #21,231 — Overall
- #76 — problem
- #106 — custom font
- #114 — customer
- #129 — custom feed
- #140 — force

## Permissions and access

### Permissions

- `storage`

### Host permissions

- `*://codeforces.com/*`

### Content script matches

- `codeforces.com`

## Safety

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

### Analysis details

- Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial 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/codeforces-custom-contests)