Selenium Firefox driver comes up in -silent instead -foreground mode in Linux

[selenium-user1]

Setup: selenium-server-standalone-2.40.0, Firefox v27.0, Linux

    FirefoxProfile fp = new FirefoxProfile();
    fp.setAcceptUntrustedCertificates(true);
    fp.setEnableNativeEvents(false);  
    driver = new FirefoxDriver(fp);  <-- Seems to be hanging here
    driver.manage().timeouts().implicitlyWait(TIMEOUT, TimeUnit.MILLISECONDS);

Automation would go fine for awhile and then intermittently don't see Firefox browser come up. When look for the process on Linux, firefox is trying to come up in -silent instead -foreground. If anybody has seen the above issues, please advise. Thanks.

[barancev]

Selenium 2.40 is out of date. Please retest with 2.49 and request reopen if the issue is still actual.