title: Unable to run automation on firefox Jenkins
body: <p>I'm having trouble running the automation project on a recently installed Jenkins on a Ubuntu server. I'm having the following error:</p>
  
  <pre><code>Selenium::WebDriver::Error::WebDriverError: unable to obtain stable firefox connection in 60 seconds (127.0.0.1:7055)
  /var/lib/gems/2.3.0/gems/selenium-webdriver-2.53.0/lib/selenium/webdriver/firefox/launcher.rb:90:in `connect_until_stable'
  /var/lib/gems/2.3.0/gems/selenium-webdriver-2.53.0/lib/selenium/webdriver/firefox/launcher.rb:55:in `block in launch'
  /var/lib/gems/2.3.0/gems/selenium-webdriver-2.53.0/lib/selenium/webdriver/common/socket_lock.rb:43:in `locked'
  /var/lib/gems/2.3.0/gems/selenium-webdriver-2.53.0/lib/selenium/webdriver/firefox/launcher.rb:51:in `launch'
  /var/lib/gems/2.3.0/gems/selenium-webdriver-2.53.0/lib/selenium/webdriver/firefox/bridge.rb:43:in `initialize'
  /var/lib/gems/2.3.0/gems/selenium-webdriver-2.53.0/lib/selenium/webdriver/common/driver.rb:53:in `new'
  /var/lib/gems/2.3.0/gems/selenium-webdriver-2.53.0/lib/selenium/webdriver/common/driver.rb:53:in `for'
  /var/lib/gems/2.3.0/gems/selenium-webdriver-2.53.0/lib/selenium/webdriver.rb:84:in `for'
  /var/lib/gems/2.3.0/gems/watir-webdriver-0.9.1/lib/watir-webdriver/browser.rb:46:in `initialize'
  /var/lib/jenkins/workspace/JobScience/lib/New_Automation/Test/test_basic.rb:15:in `new'
  /var/lib/jenkins/workspace/JobScience/lib/New_Automation/Test/test_basic.rb:15:in `setup'
  </code></pre>
  
  <p>I've read that I should update the selenium-webdriver gem, but I have it up to date. Also installed the firefox plugins in jenkins and still not working.</p>