During June 2025, Robert Lin focused on stabilizing the automated test suite for the mozilla/gecko-dev repository, prioritizing CI reliability over new feature development. He addressed persistent failures in the macOS CI environment by reverting an unstable Interest Targets/Test Input Modalities test, which had caused ongoing disruptions. Using his expertise in debugging, HTML, and JavaScript, Robert maintained overall test coverage while removing flaky test logic and documenting the changes for future improvements. His work reduced pipeline noise and enabled faster, more predictable builds, contributing to the project’s release readiness and demonstrating a methodical approach to cross-platform test infrastructure maintenance.