'Failed to connect to binary FirefoxBinary(C:\Program Files (x86)\Mozilla Firefox\firefox.exe) on port 7056; process output follows: null

I am using FireFox 18 with Selenium 2.29.0. While running test exception occurs

Failed to connect to binary FirefoxBinary(C:\Program Files (x86)\Mozilla Firefox\firefox.exe) on port 7056; process output follows: null

It seems strange that this error seldom occurs. Let's say I have 20 tests in my class, the "failed to connect" error occurs in 2 tests sometimes 3 and sometimes it doesn't occur.

Can't figure out why is it happening. If this is some how version problem or something else, none of the test case should run.

javaseleniumwebdriver


Solution 1:[1]

If you have path variable at your environment variables not set..then set it to location of Firefox.exe.... Or you can explicitly mention path to firefox.exe a

File pathToFirefoxBinary = new File(browser);
FirefoxBinary firefoxbin = new FirefoxBinary(pathToFirefoxBinary);
driver = new FirefoxDriver(firefoxbin,null);

This should work.. Or u can go for upgradation to 2.31.0

Solution 2:[2]

I had exactly the same problem when i was using firefox 28.0, I solved it by downgrading Firefox version to 27.0.1

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Virendra Joshi
Solution 2 Shessuky

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