Hani Yacoub focused on stabilizing automated test suites for the mozilla/fx-desktop-qa-automation repository, addressing reliability issues in Linux telemetry and PDF viewer tests. By leveraging Pytest and test automation best practices, Hani identified and skipped an unstable Linux telemetry test and removed an unstable decorator from the PDF viewer test. These targeted interventions reduced flaky failures and improved the consistency of continuous integration runs. Working primarily in Python, Hani’s efforts enhanced the overall confidence in the test suite, enabling faster feedback on pull requests and contributing to more predictable release readiness for the project’s Linux and PDF viewer components.