Bugzilla

Bugzilla is a web-based, open-source bug tracking system and testing tool originally developed and used by the Mozilla project, and later adopted by thousands of organizations to manage software defects, feature requests, and other development tasks.

History

Bugzilla was created in 1998 by Terry Weissman, a Netscape employee, to replace the internal bug tracking system used by the Mozilla project. Initially written in Tcl, it was soon rewritten in Perl to improve flexibility and scalability. The first public release was Bugzilla 2.0 in 1999. Over the years, Bugzilla evolved under the stewardship of the Mozilla Foundation, with major releases adding features such as customizable workflows, advanced searching, and email integration. The project remains actively maintained by a community of contributors and is still used by the Mozilla project itself, along with many other open-source and commercial organizations.

Features

Bugzilla provides a comprehensive set of features for tracking and managing bugs and issues:

• Bug Registration: Users can submit bug reports with details such as product, component, severity, priority, and assignment.
• Lifecycle Management: Bugs can be tracked through statuses like UNCONFIRMED, NEW, ASSIGNED, RESOLVED, and CLOSED, with customizable workflows.
• Searching and Filtering: Advanced query capabilities allow users to find bugs by keywords, fields, saved searches, and complex Boolean expressions.
• Email Notifications: Automatic notifications can be sent to users when bugs are created, modified, or reassigned.
• Reporting and Charts: Built-in reporting tools generate graphs and tables for trends, statistics, and productivity metrics.
• Security: Support for authentication (e.g., LDAP, Active Directory), role-based access control, and audit trails.
• Customization: Users can define custom fields, statuses, resolutions, and products/components to match specific workflows.
• Integration: Bugzilla offers XML-RPC, REST APIs, and email interfaces for integration with external tools like version control systems and continuous integration platforms.
• Internationalization: The interface is available in multiple languages.

Architecture

Bugzilla is written primarily in Perl, with JavaScript for frontend interactivity and a MySQL, PostgreSQL, MariaDB, Oracle, or SQLite database backend. It follows a typical LAMP (Linux, Apache, MySQL, Perl) architecture. The system runs on a web server, with the main configuration stored in a localconfig file and templates driven by the Template Toolkit. Bugzilla can be deployed on Unix-like systems (Linux, macOS) and, with some additional setup, on Windows via Cygwin or native Perl. The architecture is designed for moderate to high scalability, with large installations supporting hundreds of thousands of bugs and many simultaneous users.

Usage

Bugzilla is used by a wide variety of organizations, ranging from open-source projects (e.g., Mozilla, Apache Software Foundation, LibreOffice, GNOME) to large corporations (such as Red Hat, Novell, and the Linux kernel project) and government agencies. Its typical use cases include:

• Tracking software defects reported by testers and users.
• Managing feature requests and enhancement proposals.
• Coordinating development tasks and assignments within a team.
• Generating reports on project health and team productivity.
• Auditing change history and maintaining a permanent record of decisions.

Community and Development

Bugzilla is maintained by a global community of developers, system administrators, and users. The project publishes regular releases, including major versions (e.g., 4.x, 5.x) and security updates. Development takes place on GitHub and via the official bugzilla.org website, where users can report bugs and contribute patches. The project also maintains a wiki with documentation, installation guides, and customization tips. Community support is available through mailing lists, IRC, and forums.

See also

• Issue tracking system
• List of bug tracking systems
• MantisBT
• JIRA
• Trac

References

• Bugzilla official website: https://www.bugzilla.org/
• Bugzilla GitHub repository: https://github.com/bugzilla/bugzilla
• Mozilla Foundation: https://foundation.mozilla.org/