unable to run a Firefox 42 Test

I’ve just installed a WebPageTest 2.18 private intance on a Linux Server with two agents running on Win 7. The first one for Chrome and IE 11 (running well), the 2nd one for Firefox 42. The Firefox test return a blank page. The browser is opened but nothing is loaded… Need help please…

Make sure to update the agents to the latest. There have been a lot of fixes to deal with new browser releases since the 2.18 release: https://sites.google.com/a/webpagetest.org/docs/private-instances#TOC-Updating-Test-Agents

I’m gonna update all agents as soon as possible.
Thank you Patrick.