Bugzilla is the bug tracking software the KDE community uses to handle the bug reports of their applications.
Our bugtracker is located at https://bugs.kde.org
Main screen of the bugtracker (default style):
You can properly identify each KDE application with its bugzilla product component using this feature: Describe components
Adding comments to a bug report
Modifying some of the fields of a bug report
Configure your bugzilla account look and feel