Bugzilla is an open-source issue tracking system designed to help manage software development processes by tracking bugs and code changes. It facilitates team collaboration and enhances efficiency by allowing users to report, review, and manage defects in software projects. Bugzilla is highly customizable, supports a wide range of projects, and provides features like advanced search capabilities, email notifications, time tracking, and comprehensive reporting. It is widely adopted in the software development industry due to its flexibility and proven effectiveness in improving product quality.