Before you can create and run your own tests you have to install Mozmill on your system. This can be accomplished in two different ways:

1. By installing Mozmill as an extension the integrated IDE can be used to edit and run the tests directly from within the application. This method is recommended for new users because it only requires some clicks to install. You should use a separate profile.
2. By using setuptools Mozmill can be installed as a Python package. It allows you to run tests from the command line with a given application. Even restart tests are possible and there is no need for a separate profile.

The instructions for each of these installation methods can be found below:

Mozmill IDE

To install Mozmill as extension go to addons.mozilla.org or the Mozmill project page on Github. Click on the latest version of the extension and accept the sofware installation warning. If a download prompt will be shown instead you should use drag&drop to place the extension link onto the Add-ons Manager. Afterward Mozmill is installed it can be found under the Tools menu.

Mozmill via Command Line

To install Mozmill as command line application just follow the installation steps on developer.mozilla.org.

With Mozmill installed you can now head over to the next section and find out how to access our Mozmill repository.