When I run web driver with Firefox browser it generates a blank Firefox browser and after a minute the browser closes without running the WebDriver program. The following error is generated on eclipse:

org.openqa.selenium.firefox.NotConnectedException: Unable to connect to host on port 7055 after 45000 ms

Please how do I resolve this. I am using the latest Firefox browser (47.0.1), and selenium java client driver 2.53.0.

  • your firefox browser and java webdriver version is too high,and not match each other
    – Hellotree
    Jul 7, 2016 at 9:22

2 Answers 2


Update Firefox to 47.0.1 and Selenium Java client to 2.53.1

  • why? do these versions include a bug fix?
    – ECiurleo
    Jul 7, 2016 at 10:29
  • Latest version of Firefox has some compatibility issues with the older version of Selenium, but it is working fine with latest version of Selenium Jul 7, 2016 at 11:29
  • 1
    See Bug Details Jul 7, 2016 at 11:36
  • Thats great! Could you add that into your answer so it is more "complete" for future visitors to the site asking the same question
    – ECiurleo
    Jul 8, 2016 at 12:40
  • @ curious I updated my selenium java client from 2.53.0 to 2.53.1 and the issue has been resolved. Thanks a lot.
    – Kenzie008
    Jul 10, 2016 at 10:01

As of v2.51.0, the firefox driver supports Firefox 44, so without posting any code that's about all I can help you with.


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