Selenium 2.53.1 does not work on FireFox 48

Just like the other drivers available to Selenium from other browser vendors, Mozilla has released an executable that will run alongside the browser.

You can download the latest executable geckodriver from here

Add downloaded executable geckodriver to system path

The Selenium client bindings will try to locate the geckodriver (or wires) executable from the system path. You will need to add the directory containing the executable to the system path.

• On Unix systems you can do the following to append it to your system’s search path, if you’re using a bash-compatible shell:

  export PATH=$PATH:/path/to/directory/of/executable/downloaded/in/previous/step

• On Windows you need to update the Path system variable to add the full directory path to the executable geckodriver. The principle is the same as on Unix.

After all above stuff you need to Initialize FireFoxDriver as below :-

var driver = new FirefoxDriver(new FirefoxOptions());

Note :- Follow this link for the solution of this problem with other programming language.

This answer didn't worked with me. Running selenium 2.53.6 and firefox 47 n 48.

I would recommend downloading firefox 46 which seems to be the best match for selenium 2.53.x.

https://ftp.mozilla.org/pub/firefox/releases/46.0.1/win64/en-US/

Once I downgraded to firefox 46.0.1 everything was working as expected.