In April 2026, Firmen Schoech enhanced internationalization in the thunderbird-android repository by implementing locale-sensitive ordering of folder names. Using Kotlin and Android development best practices, Firmen addressed a bug that caused inconsistent folder lists across different user locales, ensuring that folder names now appear in an order familiar to multilingual users. The work focused on improving user experience for a global audience by consolidating i18n improvements and reducing confusion related to locale-based folder organization. Firmen’s contribution demonstrated a thoughtful approach to internationalization, leveraging expertise in Kotlin and i18n to deliver a more intuitive and accessible Android application for diverse users.