# CF Performance Mirror

> Analyze overall performance, solve time, failure rates, rating changes and errors by division and time range.

Canonical page: [https://chrome-stats.com/d/cf-performance-mirror](https://chrome-stats.com/d/cf-performance-mirror)

## Overview

- **ID:** `cf-performance-mirror`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Pritam Mohanta
- **Category:** web-development
- **Daily users:** 10
- **Weekly downloads:** 1
- **Rating:** 5.00 / 5 (1 ratings)
- **Version:** 1.0.24.77
- **Last updated:** 2026-04-12
- **First published:** 2026-02-06
- **Size:** 36 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/cf-performance-mirror/)
- **Website:** [https://github.com/perxeusss/cf-performance-mirror](https://github.com/perxeusss/cf-performance-mirror)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/cf-performance-mirror/privacy/](https://addons.mozilla.org/firefox/addon/cf-performance-mirror/privacy/)

## Description

Track your Codeforces performance with clear insights into solve times, failure rates, rating changes and problem-level errors, broken down by division and time range. Filter by contest type and focus on selected topics, rating ranages to quickly spot weak areas and improve efficiently, all directly on your profile page.

## Rankings

- #33,135 — Overall
- #11 — performance
- #32 — error
- #183 — format
- #240 — rating

## Permissions and access

### Host permissions

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

### Content script matches

- `codeforces.com`
- `*.codeforces.com`

## Safety

- **Risk impact:** Low risk impact
- **Risk likelihood:** Moderate 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).

## Similar extensions and apps

- [CF Analyticsew53tge](https://chrome-stats.com/d/cf-analyticsew53tge)
- [Codeforces Submission Analyzer](https://chrome-stats.com/d/codeforces-submission-analyzer) — 12 users, 5.00 / 5
- [CF Analytics](https://chrome-stats.com/d/cf-analytics) — 2,037 users, 5.00 / 5
- [Codeforces Custom Contests](https://chrome-stats.com/d/codeforces-custom-contests) — 27 users, 4.67 / 5
- [CF AC Companion](https://chrome-stats.com/d/cf-ac-companion)
- [AC Analytics](https://chrome-stats.com/d/ac-analytics) — 60 users, 5.00 / 5
- [practice progress Codeforces](https://chrome-stats.com/d/practice-progress-codeforces)
- [Codeforces Daily Momentum](https://chrome-stats.com/d/codeforces-daily-momentum) — 1 users
- [Codeforces Practice Tracker](https://chrome-stats.com/d/codeforces-practice-tracker) — 613 users, 5.00 / 5
- [progress on Codeforces.](https://chrome-stats.com/d/progress-on-codeforces)
- [practice progress on Codeforces.](https://chrome-stats.com/d/practice-progress-on-codeforce)
- [CF Stopwatch](https://chrome-stats.com/d/cf-stopwatch) — 28 users, 5.00 / 5

---

Source: [Chrome-Stats](https://chrome-stats.com/d/cf-performance-mirror)