In June 2025, Michael Crawford developed end-to-end support for sponsored content within the mozilla/gecko-dev repository, focusing on integrating Spocs across AdsFeed and DiscoveryStreamFeed. He refactored data handling in JavaScript to support both tile and spoc data, updating reducers and actions to ensure seamless data flow. By synchronizing ad data fetching and user preferences, he enabled a more comprehensive and personalized ad delivery system. His work in browser and front-end development aligned with business goals of monetization while maintaining performance and code maintainability. The project demonstrated depth in integrating new features into complex, production-scale web infrastructure.