When mozilla.org first came online in 1998, one of the first products that was released was Bugzilla, an open source bug system implemented using freely available open source tools. Bugzilla was originally written in TCL by Terry Weissman for use at mozilla.org to replace the in-house system then in use at Netscape. Before mozilla.org released it as open source, Terry decided to port Bugzilla to Perl, with the hopes that more people would be able to contribute to it, since Perl seemed to be a more popular language. Bugzilla 2.0 was the result of that port to Perl, and the first version released to the public via anonymous cvs. Since then a large number of projects, both commercial and free have adapted it as their primary method of tracking software defects. In April of 2000, Terry handed off control of the Bugzilla project to Tara Hernandez. Under Tara's leadership, some of the regular contributors were coerced into taking more responsibility, and Bugzilla began to truly become a group effort. In July of 2001, facing lots of distraction from her "real job," Tara handed off control to Dave Miller, who is still in charge as of this writing.
official website
http://www.bugzilla.org