Selenium And Web2py From Killer-web-development.com Doesn't Work

I am trying to follow the tutorial on http://killer-web-development.com/section/4/3 and I am running into the error message: ===================================================

Solution 1:

The reason you have problems is because you have a brand new browser and an old selenium.

You need to do two things:

• upgrade selenium package to the latest (currently 2.42.1) version
• downgrade Firefox to 28 version