During a two-month period, Bittin focused on enhancing Swedish localization for the mozilla/addons-frontend repository. They addressed translation inconsistencies and UI alignment issues by updating PO files and refining translation strings, which improved the user experience for Swedish-speaking users. Their work leveraged JavaScript and PO file management, integrating with the Pontoon localization workflow to streamline future updates. Bittin also updated metadata, translator credits, and date formats, ensuring accurate and comprehensive localization coverage. The depth of their contributions lay in both correcting existing issues and expanding translation completeness, resulting in a more consistent and accessible frontend interface for international users.