title: Firefox unable to launch in VM machine
body: <p>I am using below code for Firefox launch in locally and through VM machine. But I am unable to launch firefox through VM machine. </p>
  
  <pre><code> case FIREFOX:
                      browserType = BrowserTypes.FIREFOX;
                      System.setProperty("webdriver.gecko.driver", "Drivers/geckodriver.exe");
                      FirefoxOptions firefoxOptions = new FirefoxOptions();
                     firefoxOptions.setCapability("marionette", true);
                      firefoxOptions.setAcceptInsecureCerts(true);
                      if(isRemote) {
                          webDriver = launchGridDriver(firefoxOptions, configProps.getNodeUrl());
                          Reporter.log("Running test on Grid, in browser \'Firefox\'", true);
                      } else {
                          webDriver = new FirefoxDriver(firefoxOptions);
                          Reporter.log("Running test in browser \'FIREFOX\'", true);
                      }
                      break;
  
  
   private WebDriver launchGridDriver(Capabilities capabilities, String url){
          try{
              return new RemoteWebDriver(new URL(url), capabilities);
          } catch(Exception e){
              Reporter.log("There was an error setting up the remote WebDriver.");
              e.printStackTrace();
              return null;
          }
      }
  </code></pre>
  
  <p>I am able to launch firefox locally and when I just trying to launch in remote below error is getting.</p>
  
  <pre><code>org.openqa.selenium.SessionNotCreatedException: Unable to create session from {
    "desiredCapabilities": {
      "browserName": "firefox",
      "server:CONFIG_UUID": "02c53809-74d8-4b47-95a1-fc97610ba78c",
      "moz:firefoxOptions": {
        "args": [
        ],
        "prefs": {
        }
      },
      "marionette": true,
      "acceptInsecureCerts": true
    },
    "capabilities": {
      "firstMatch": [
        {
          "acceptInsecureCerts": true,
          "browserName": "firefox",
          "moz:firefoxOptions": {
            "args": [
            ],
            "prefs": {
            }
          },
          "server:CONFIG_UUID": "02c53809-74d8-4b47-95a1-fc97610ba78c"
        }
      ]
    }
  }
  </code></pre>