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Editorial Team
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Asked: 2026-05-23T01:39:40+00:00

I have a WebDriver test using the FirefoxDriver that I am attempting to run

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I have a WebDriver test using the FirefoxDriver that I am attempting to run as a Jenkins job.

It works fine in Windows, it also works from the command line in Linux, where my Jenkins server lives.

Unfortunately, I got the following error during executing as a Jenkins job:

org.openqa.selenium.firefox.NotConnectedException: Unable to connect to host 127.0.0.1 on port 7055 after 45000 ms

The Jenkins job consists of 2 steps: a shell step that executes:

Xvfb :1 -screen 0 1024x768x24 &
export DISPLAY=:1

And then a maven package to run the test class.

Why can’t I get the Jenkins job to execute Firefox?

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1 Answer

  1. Editorial Team

    What finally ended up working was to create the entire Jenkins job as one step that ran shell commands:

    Xvfb :1 -screen 0 1024x768x24 &
export DISPLAY=:1
mvn package

    and that worked. No more NotConnectedException.

    I had originally had the Jenkins job as 2 steps, shell to create virtual frame buffer and maven goal.

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