During April 2026, contributed to the mozilla/web-ext repository by developing a new CLI feature that allows users to launch Chromium with custom preferences, enhancing the flexibility of test environments. This addition, implemented in JavaScript, introduced the --chromium-pref option, enabling more reproducible and automated test runs for Chromium-based workflows. The work focused on CLI development and testing, integrating seamlessly with the existing Chromium runner to streamline both CI and local automation processes. Collaboration was emphasized through co-authored commits, reflecting cross-functional teamwork. No bugs were reported as fixed during this period, with efforts concentrated on delivering this targeted feature enhancement.