Bugzilla is used, among others, by the Mozilla Foundation, WebKit, Linux kernel, FreeBSD,[4] KDE, Apache, Eclipse and LibreOffice.

In July 2001, facing distraction from her other responsibilities in Netscape, Hernandez handed control to Dave Miller, who was still in charge as of 2020[update].

Bugzilla's installation process is command line driven and runs through a series of stages where system requirements and software capabilities are checked.

While the potential exists in the code to turn Bugzilla into a technical support ticket system, task management tool, or project management tool, Bugzilla's developers have chosen to focus on the task of designing a system to track software defects.

[16] It indicates that a verified issue will not be addressed for one of several possible reasons including fixing would be too expensive, complicated or risky.