# Chess Trainer

> Enhances chess.com puzzles with an optional auto-flip 'defensive mode', and a configurable session timer with chimes.

Canonical page: [https://chrome-stats.com/d/chess-trainer](https://chrome-stats.com/d/chess-trainer)

## Overview

- **ID:** `chess-trainer`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Ecys
- **Category:** games-entertainment
- **Version:** 2.6
- **Last updated:** 2025-06-29
- **First published:** 2025-06-24
- **Size:** 40 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/chess-trainer/)
- **Website:** [https://ecys.xyz](https://ecys.xyz/)

## Description

Inspired by ❤️ chesspage1 ❤️

## Rankings

- #134,617 — Overall

## Permissions and access

### Permissions

- `storage`
- `activeTab`
- `tabs`
- `https://www.chess.com/puzzles/learning`

### Content script matches

- `www.chess.com`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- 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/chess-trainer)