
Bugzilla is a web-based defect-tracking system for managing software bugs, issues, and change requests.
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Bugzilla is a mature, open-source bug-tracking system used to track defects, issues, and enhancements in software development projects. It supports advanced search, customizable workflows, time tracking, and security controls, and is installable on multiple operating systems.
Updated Oct 20, 2026.
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Bugzilla lets you plan, organize and release software on your own teams' schedule.
Search and find for the exact thing you are looking for
Track the progress on the past, current and future releases of your products
You can get an email about any change made in Bugzilla, and which notifications you get on which bugs is fully controlled by your personal user preferences.
When you search for bugs, you can get the results in many different formats than just the basic HTML layout.
Bugzilla has a system that will send you, another user, or a group that you specify the results of a particular search on a schedule that you specify! It can be at any time of day, and it can happen as often as every fifteen minutes.
If you want to know how your bug database looks right now, you can create a table using any two fields as the X and Y axis, and using any search criteria to limit the bugs you want information on.
In addition to the web interface, you can send Bugzilla an email that will create a new bug, or will modify an existing bug. You can also very easily attach files to bugs this way.
The Request System is a method of asking other users to do something with a particular bug or attachment.
If you are in the “insider group,” you can mark certain attachments and comments as private, and then they will be invisible to users who are not in the insider group.
For larger installations, Bugzilla supports “autocomplete” when typing a username for the assignee, CC list, or other field that takes a username.
Patch Viewer gives you a nice, colorful view of any patch attached to a bug. It also integrates with LXR, CVS, and Bonsai to provide you even more information about a patch.
Then, you will get every email that user gets from Bugzilla, as though that user was you.
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