Chess Assistant by GenMate EN

GenMate Chess Assistant shows real-time engine hints from Stockfish 19 Lite while you play against the computer on Lichess.

Hints work only in your own standard games against the Lichess AI, never against human opponents.

Data

Stockfish analysis runs locally in your browser. With your permission, the extension sends your Lichess API token and the ID of the game you open to lichess.org, only to read that game's moves. The developer does not receive your token, games or positions. If enabled, the extension also checks a small news file hosted on GitHub every few hours; that request contains no token, game or browsing data. Version 1.1.1 stores your token and settings in this browser only (not synced). A token saved by version 1.1.0 may also be kept in Firefox Sync storage, which Firefox manages; "Remove token" deletes the local token and requests deletion of the old Firefox Sync copy; any storage error is shown. Removing the token from the extension does not revoke it on Lichess. No analytics or telemetry.

You can change your choice any time: popup → Data settings.

Features:
- Best-move hints with evaluation, powered by Stockfish 19 Lite (WASM)
- Works in real time as the game progresses
- Supports games from any starting position
- Clean, unobtrusive on-board hint card

How to use:
1. Click the GenMate icon and add your Lichess API token (board:play scope)
2. Start a game vs computer on Lichess
3. Hints appear automatically on your move

Open source (GPL-3.0). Source code: https://github.com/GenMate/genmate-chess-assistant
Powered by Stockfish — https://stockfishchess.org