SafariDriver
Intro
Since Selenium 2.45.0, in order to use SafariDriver, you need to manually install the SafariDriver browser extension.
A Solution
Running your Selenium tests on a different browser tends to require additional setup, and SafariDriver is no exception.
The following example will go through how to do it and make sure it's working.
Authors
Original creator of Elemental Selenium
Elemental Selenium maintainer