# CSES EXTENSION

> Enhance your CSES experience with notes, tags, stats, and automation tools.

Canonical page: [https://chrome-stats.com/d/cses-extension](https://chrome-stats.com/d/cses-extension)

## Overview

- **ID:** `cses-extension`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Krish Joshi
- **Category:** appearance
- **Daily users:** 59
- **Weekly downloads:** 1
- **Version:** 1.0.0
- **Last updated:** 2025-10-26
- **First published:** 2025-10-23
- **Size:** 250 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/cses-extension/)

## Description

The CSES Extension is a productivity-focused Chrome extension designed to make solving problems on the CSES Problem Set easier, faster, and more organized.

🚀 Key Features

📝 Notes
• Add personal notes for each problem directly on the CSES page.
• Keep track of hints, mistakes, or custom logic for future reference.
• Notes are saved securely in your browser’s local storage.

📊 Global & Category Statistics
• Global Stats: See how many problems YOU have solved in total, including incorrect tasks.
• Category Stats: Track how many problems YOU have solved in each category.

👀 Copy Button
• Copy buttons added to all relevant sections for quick and easy code or text copying.

💬 Submit by Text
• Submit your code via text input instead of selecting files manually.

🔢 Sort & Filter Tools
• Sort problems by number of solvers, acceptance rate, or leave it to default.

🏷️ Tags & Hints
• View problem tags (like DP, graphs, strings, greedy, etc.) to understand problem type.
• Access helpful hints (if available) to guide your thought process without spoiling solutions.

⏱️ Time Complexity Display
• Displays the expected time complexity for each problem so you can optimize your approach.

⚙️ Automation Tools

🔐 Auto Login
• Save your CSES credentials securely in Chrome’s local storage and log in automatically.

🌗 Auto Theme Mode
• Automatically switch between Dark and Light mode based on your saved preference.

🔒 Privacy
This extension does not collect or share any personal data.
All information, including credentials and notes, is stored locally in Chrome’s secure storage.

💡 Usage Tips
1. Install the extension.
2. Click the CSES Extension icon in your Chrome toolbar.
3. Enable or disable features as you prefer.
4. Refresh the CSES website to see your changes in action.  

💬 Tip: You can toggle features anytime — your preferences are saved automatically.

🔮 Future Plans
1. Improved Dashboard & Personal Statistics
2. Cloud/Notion API integration to sync notes across devices
3. Expanded hint, tag, and complexity data for all problems

🙏 Please leave some feedback and share with your friends — it will motivate me to add and improve features!

## Rankings

- #14,906 — Overall
- #122 — session
- #152 — stats
- #159 — extension
- #161 — extension guard
- #190 — problem

## Permissions and access

### Permissions

- `scripting`
- `activeTab`
- `storage`

### Host permissions

- `https://cses.fi/*`
- `http://cses.fi/*`

### Content script matches

- `cses.fi`

## 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).

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