During July 2025, Bob Schouten focused on improving test infrastructure in the mozilla/gecko-dev repository by addressing a persistent issue with Firefox UI functional test discovery. He transitioned the test manifest format from .ini to TOML, enabling the mach test runner to reliably locate and execute local test suites. This change streamlined the developer workflow by reducing setup time and minimizing debugging overhead. Bob’s work involved Python for automation and testing, as well as integrating TOML-based configuration. By resolving a key bug, he enhanced the alignment between test manifests and the test runner, supporting faster iteration cycles for UI test development.