Below is a list of DevTest Versions and the Version of Firefox to use based on the Selenium jars we deliver with each version.
DevTest Firefox SeleniumVersion Version we deliver
10.3.0 46 2.53
10.2.4 46 2.53
10.1.0 46 2.53
10.0.0 46 2.53
9.5.1 46 2.53 9.1.0 41 2.48 9.0.0 41 2.46 8.5.0 41 2.46 8.4.0 41 2.46 8.3.0 41 2.46 8.2.0 41 2.45 8.1.0 41 2.45 8.0.2 41 2.45 8.0.1 35 2.44 8.0.0 35 2.44
Note: with Selenium 2.53 FF version 47 may works as well.