Bugzilla is an open-source Bug tracking tool. Many companies are using this open-source tool for managing the software development process.
Bugzilla is a defect/bug tracking tool. Defect tracking systems allow developers and testers to track all the outstanding defects. Bugzilla can be linked to other testing tools like JIRA, QC or ALM, etc.
Bugzilla is developed in Perl and runs on an MYSQL server.