Trending September 2023 # Bugzilla Tutorial – Defect Tracking Tool # Suggested October 2023 # Top 13 Popular |

Trending September 2023 # Bugzilla Tutorial – Defect Tracking Tool # Suggested October 2023 # Top 13 Popular

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What is Bugzilla?

Bugzilla is an open-source issue/bug tracking system that allows developers to keep track of outstanding problems with their product. It is written in Perl and uses MYSQL database.

Bugzilla is a Defect tracking tool, however, it can be used as a test management tool as such it can be easily linked with other Test Case management tools like Quality Center, Testlink etc.

This open bug-tracker enables users to stay connected with their clients or employees, to communicate about problems effectively throughout the data-management chain.

Key features of Bugzilla includes

Advanced search capabilities

E-mail Notifications

Modify/file Bugs by e-mail

Time tracking

Strong security



How to log-in to Bugzilla

Step 1) Use the following link for your hands-on. To create an account in Bugzilla tool or to login into the existing account go to New Account or Log in option in the main menu.

Step 2) Now, enter your personal details to log into Bugzilla

User ID


Step 3) You are successfully logged into Bugzilla system

Creating a Bug-report in Bugzilla

Step 2) In the next window

Enter Product

Enter Component

Give Component description

Select version,

Select severity

Select Hardware

Select OS

Enter Summary

Enter Description

Attach Attachment


NOTE: The above fields will vary as per your customization of Bugzilla

NOTE: The mandatory fields are marked with *.

In our case field’s



Are mandatory

If you do not fill them you will get a screen like below

Step 4) Bug is created ID# 26320 is assigned to our Bug. You can also add additional information to the assigned bug like URL, keywords, whiteboard, tags, etc. This extra-information is helpful to give more detail about the Bug you have created.

Large text box





Depends on



Step 5) In the same window if you scroll down further. You can select deadline date and also status of the bug. Deadline in Bugzilla usually gives the time-limit to resolve the bug in given time frame.

Create Graphical Reports

Graphical reports are one way to view the current state of the bug database. You can run reports either through an HTML table or graphical line/pie/bar-chart-based one. The idea behind graphical report in Bugzilla is to define a set of bugs using the standard search interface and then choosing some aspect of that set to plot on the horizontal and vertical axes. You can also get a 3-dimensional report by choosing the option of “Multiple Pages”.

The graph below shows the Bar chart representation for the Bugs severity in component “Widget Gears”. In the graph below, the most severe bug or blockers in components are 88 while bugs with normal severity are at the top with 667 number.

Likewise, we will also see the line graph for %complete Vs Deadline

Step 1) To view your report in a graphical presentation,

Step 2) Let’s create a graph of % Complete Vs Deadline

In here on the vertical axis we chose % Complete and on our horizontal axis we chose Deadline. This will give the graph of amount of work done in percentage against the set-deadline.

Now, set various option to present reports graphically

Vertical Axis

Horizontal Axis

Multiple Images

Format- Line graph, Bar chart or Pie chart

Plot data set

Classify your bug

Classify your product

Classify your component

Classify bug status

Select resolution

The image of the graph will appear somewhat like this

Browse Function

Select the product “Sam’s Widget” as such you have created a bug inside it

It will open another window, where information about your bug can be seen more in detail. In the same window, you can also change the assignee, QA contact or CC list.

How to use Simple search option in Bugzilla

Bugzilla provides two ways of searching for bugs, they are Simple Search and Advance Search methods.

Choose the status of the Bug – choose Open if you are looking the bug in Open status and closed for bug in closed status

Choose your category and component, and you can also put keywords related to your bug

For closed status, it fetched 12 bugs.

Step 3) Likewise we have searched for Open status as well, and it has fetched 37 bugs related to our queries.

Also, at the bottom of the screen you have various options like how you want to see your bug – an XML format, in Long format or just Time summary. Apart from that you can also use other option like send mail to bug assignee, change several bugs at once or change column of the screen, etc.

In next step, we will demonstrate one of this function change column of the screen, through which we will learn how to add or remove the column to the existing column.

How to add or remove a column to default search screen

Select any given option from the column you want to appear in the main screen – here we have selected % complete

These steps will move the selected column from left to right.

Before- Search result screen before using “Change Column” option-

There is no % complete column appears in search screen result as shown below

After- Search result screen after using “Change Column” option

You can see % complete column added to the extreme right in the existing column in the main screen, which was not their previously.

NOTE: Likewise you can remove or add any column you want.

How to use Advanced Search in Bugzilla

Step 1) After a Simple search we will look into the Advanced Search option for that you have to follow the following steps.

Select option for a summary, how you want to search

Enter the keyword for your bug- for example, Widget gears twisted

Select the category of your Bug under classification, here we selected Widget

Choose your product under which your Bug was created- Sam’s Widget

Component- Widget gears

Status- Confirmed


How to use preferences in BugZilla

Preferences in Bugzilla is used to customize the default setting made by Bugzilla as per our requirement. There are mainly five preferences available

General Preferences

E-mail Preferences

Saved Searches

Account Information


General Preferences

There are many changes you can do which are self-explanatory, and you can choose the option as per your requirement.

Step 1)

To set the background Skin of Bugzilla

Go to Bugzilla general preference (Skin)

Select the option you want to see as a change and submit the change ( Dusk


Classic )

A message will appear on the window saying changes have been saved, as soon as you submit the changes

After the skin preference is changed to Classic from Dusk, the background color of the screen appears white

Likewise, for other default settings changes can be done.

E-mail preferences

E-mail preferences enable you to decide how to receive the message and from whom to receive the messages.

Step 1) To set the e-mail preferences

Enable or disable the mail to avoid receiving notification about changes to a bug

Receiving a mail when someone asks to set a flag or when someone sets a flag you asked for

When and from whom you want to receive mail and under which condition. After marking your option at the end, submit the changes.

Saved Searches Preference

Saved searches preference gives you the freedom to decide whether to share your bug or not to share.

Step 2) We can run our bug from “Saved Searches”.

Go to Saved Searches under preference

As soon as you run your search from Saved Searches it opens your bug as shown below

Step 3) In the same window we can also choose specific users with whom we want to share the search by marking or unmarking the checkbox against the users

That’s all to BugZilla!

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