In June 2025, Eric Chuang focused on stability improvements for Service Worker handling in the mozilla/gecko-dev repository. He addressed a critical bug by introducing a defensive null check in C++ within ServiceWorkerOpRunnable, ensuring that event dispatching only occurs when WorkerPrivate::GlobalScope() is valid. This approach prevents crashes that could arise from null dereference scenarios, particularly when GlobalScope creation fails under memory pressure. By targeting this edge case, Eric’s work enhanced the reliability of Service Worker event flow and reduced the risk of user-facing crashes. His contributions demonstrate strong skills in C++ development, bug fixing, and service worker internals.