Improving at chess requires to play long time controls (at least 10 minutes per player). However shorter time controls like Bullet and Blitz are more fun to play.
This extension disables the option to play fast time formats on chess.com, so that I can focus on improving.
Go to https://www.chess.com/play/online
If you select 10 minutes or above, you can press Play
Otherwise the button will be disabled
- Go to about:debugging in Firefox
- Click on This Firefox
- Load Temporary Add on
- Find manifest.json
Run this command to generate a zip containing the extension
npm run package
Then steps 1. 2. and 3. above ^ And select the extension.zip