Firefox Build does not work with Selenium

Question

for my research, I did some source code modifications in firefox and build it myself. In order to automate testing, I opted to use Selenium but unfortunately, my newly built

Answer 1

Ubuntu 14.04, firefox 36.0, selenium 2.44.0. The same problem, was solved by:

sudo pip install -U selenium

Selenium 2.45.0 is OK with FF36.

update: Selenium 2.53+ is compatible with FF45

You can get older FF versions here