“Can't load the profile” error occured with Selenium WebDriver by Python3.5 and FF48

Question

 I\'m trying to use Selenium with Python.
 So, I wrote the following codes and save as the file named test.py in working directory /

Answer 1

From what I understand and concluded, you can keep the latest selenium package version, but you have to downgrade Firefox to 47 (47.0.1 is the latest stable from the 47 branch).