Installation

GM Cheems is available for Chrome and Firefox, and works on games on Chess.com and Lichess.

Chrome

Install from the Chrome Web Store:

Install GM Cheems for Chrome

Click Add to Chrome, then confirm. That's it: Chrome keeps it updated automatically.

Brave and other Chromium-based browsers work too: open the link in your browser and add it the same way.

Firefox

Install from Firefox Add-ons:

Install GM Cheems for Firefox

Click Add to Firefox, then confirm. Firefox keeps it updated automatically.