Developer's DescriptionBy MozillaExplore a robust, featureful, and mature defect-tracking system, or bug-tracking system.Bugzilla is a Defect Tracking System or Bug-Tracking System. Defect Tracking Systems allow individual or groups of developers to keep track of outstanding bugs in their product effectively. Bugzilla has many features: Optimized database structure for increased performance and scalability; Excellent security to protect confidentiality; Advanced query tool that can remember your searches; Integrated email capabilities Editable user profiles and comprehensive email preferences; Comprehensive permissions system; Proven under fire as Mozilla's bug tracking system.