Selenium Webdriver - Firefox Version related

Hi,

I have a project where I had coded using Selenium web driver - Java.
The version of the Firefox Browser was version 31 when I had coded the project.
It used to work fine.

Now the version of Firefox browser is 44.0. When I am running the project now with the latest version of firefox 44.0, just the browser window is opening but no automation is working.

Can you please help with this issue on what changes should I consider for the code to work even in the latest version of firefox.

Thank you.