It's quite possible that this test causes Firefox (marionette) hang on travis
@@ -229,6 +229,7 @@ public void testShouldBeAbleToGetTheLocationOfAnElement() {
@NeedsFreshDriver
@Test
@Ignore(value = SAFARI, reason = "issue 3693")
+ @Ignore(value = MARIONETTE, issue = "https://github.com/mozilla/geckodriver/issues/611")
public void testShouldBeAbleToClickALinkThatClosesAWindow() throws Exception {
driver.get(pages.javascriptPage);
