Why Firefox is required to build Wisdom

To build Wisdom, you need to have Firefox in your system path. This is because Wisdom uses Firefox to execute its internal UI tests.

Check http://superuser.com/questions/284342/what-are-path-and-other-environment-variables-and-how-can-i-set-or-use-them to learn how to update your system path.

You can also skip the test with: mvn clean install -DskipTests.