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    QA: Quality assurance at Mozilla

    The Mozilla Quality Assurance (QA) team drives software quality assurance activities across Mozilla and plays a key role in releasing a diverse range of software products on schedule. Within each project in Mozilla, we work to explore new features, write and execute tests, uncover and file bugs, build and maintain tools, collect and analyze metrics, and support the release world-class products that promote the open Web.

    Here you'll find articles and tools to help you gear up to join the QA team testing Firefox to ensure that each release is as good as it can be.

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    Bugs

    Reporting bugs

    Bugzilla
    All Mozilla projects use Bugzilla to track bugs. You will need to create an account with Bugzilla in order to report bugs and triage them.
    Bug writing guidelines
    The more effectively a bug is reported, the more likely that an engineer will actually fix it. By following these guidelines, you can help ensure that your bugs stay at the top of the Mozilla engineers' heap, and get fixed.
    A Bug's Life
    This tutorial will give an overview of what happens in the states that a bug will go through as well as how it will go from one to the next within its total life. It also explains the meaning of flags/keywords used in QA.
    Filing Crash Bugs
    This document lists guidelines and tips on how to file bug reports for crashes in a way that helps in debugging and fixing the reported issue.

    Triaging bugs

    Confirming unconfirmed bugs
    Identify useful bug reports and close the rest.
    Triaging Bugs for Firefox
    Information about the entire bug triaging process – from processing incoming bugs to narrowing down the steps to reproducing bugs.
    Screening duplicate bugs
    Help get bugs fixed faster by screening incoming reports for duplicates.
    General Guidelines
    What to do and what not to do in Bugzilla.

    Test cases

    Test Case Writing Primer
    How to write proper test cases
    MozTrap
    Mozilla QA's test cases reside in MozTrap, an in-house tool. You will need a Persona ID in order to login and execute test cases. Learn how to work with MozTrap Documentation.

    Test automation

    Automated testing at Mozilla
    Documentation about creating and using automated tests for Mozilla code.
    Developing tests
    Ensure that future changes to Mozilla don't break things that currently work correctly.
    Avoiding intermittent test failures
    Suggestions for ways to make your tests more reliable, thereby helping to avoid random, intermittent test failures.
    Robocop
    Robocop is the automated testing system used for Firefox for Android. Learn its code style guidelines
    Mozmill
    Get started with Mozmill
     

    Firefox QE

    Triaging Bugs for Firefox
    Information about the entire bug triaging process – from processing incoming bugs to narrowing down the steps to reproduce a bug.
    Tips and Tricks
    These tips and tricks will make your life easier when you are testing.
    Downloading Nightly or Trunk Builds
    Every 24 hours, a "nightly" build is created that testers all over the world download and test, reporting as they go along on any bugs that hit them. 
    Command Line Options
    Command line options are used to specify various startup options for Firefox.
    Reporting a Performance Problem
    This article will guide you in reporting a performance problem using the Gecko Profiler extension.
    Crash Reporting
    Firefox ships with an open-source crash reporting system.

    Firefox for Android

    Mobile Firefox
    Firefox for Android is the mobile version of Firefox with a native Android look and feel.
    Compatibility Testing
    Help us identify websites that do not work well in Firefox by reporting the specific issues that you find in your investigation.
    Logging with the Android Debug Bridge and Logcat
    This article will provide a walkthrough in downloading and setting up an environment to which one can gain access to and view Android system logs.
    Enabling the Error Console
    See the Mozilla Hacks article on Remote Debugging on Firefox for Android for web content. If you need to debug the Firefox browser itself use Android's adb logcat.

    Firefox OS

    Manual testing

    Simulator vs Emulator vs Device
    These are three basic options when it comes to getting a Firefox OS environment in order to work on, or developing for, Firefox OS.
    Debugging
    Discover the different tools at your disposal to debug your Firefox OS code.
    Reporting Bugs
    This article provides a guide to filing bugs against the Firefox OS project, including Gaia and B2G.

    Platform (Gecko)

    Automated Testing
    Learn various aspects of testing Firefox OS, including running different tests, automation, and result reporting and tracking.
    Gaia Performance Tests
    This article provides information about running performance tests on Gaia, as well as how to create new tests.
    Feature Support Chart
    There are several different builds of Firefox OS you can download or build for yourself, and there are some differences between the types of features available on each device.

    Web QA

    Reducing testcases
    Improve bug reports by turning broken web pages into simple testcases, which can help developers understand the bug and can also be used for creating automated tests.
    Managing XFails
    One of the ongoing tasks of the Web QA department is managing xfails. This document will explain what xfails are, and describe the steps one can take to investigate and update them.
    Running Automated Tests
    So you’re interested in contributing to Mozilla Web QA automation projects but don’t know where to start? This doc will help you get up and running a set of tests locally.

    Glossary

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    Last updated by: bassam,