Mateus is a Firefox extension designed to enhance the functionality of csTimer, a popular timing tool for speedcubing. This subscription-based add-on introduces a variety of new features including partial scrambles, multi-puzzle image views, and customizable inspection voices, currently available in Portuguese. Users can easily integrate these enhancements by reloading the csTimer window after installation. Additionally, the extension supports translations, encouraging users to contribute in their native languages.

Recent updates have introduced exciting features such as festive themes, new color customization options, and the ability to redeem secret codes for exclusive content. With ongoing improvements, such as international voice support and user interface tweaks, Mateus aims to provide a more personalized and enjoyable timing experience for speedcubers worldwide.