It seems to work for me locally on x86_64 linux but throws exception on hudson

[java] !STACK 0
> [java] org.eclipse.swt.SWTError: XPCOM error -2147467259
> [java] at org.eclipse.swt.browser.Mozilla.error(Mozilla.java:2068)
> [java] at org.eclipse.swt.browser.Mozilla.create(Mozilla.java:457)
> [java] at org.eclipse.swt.browser.Browser.<init>(Browser.java:119)
> [java] at org.jboss.tools.vpe.xulrunner.browser.XulRunnerBrowser.<init>(XulRunnerBrowser.java:87)
> [java] at org.jboss.tools.vpe.xulrunner.editor.XulRunnerEditor.<init>(XulRunnerEditor.java:135)
> [java] at org.jboss.tools.vpe.editor.mozilla.MozillaEditor$10.<init>(MozillaEditor.java:521)
> [java] at org.jboss.tools.vpe.editor.mozilla.MozillaEditor.createPartControl(MozillaEditor.java:521)
> [java] at org.jboss.tools.vpe.editor.VpeEditorPart.createVisualEditor(VpeEditorPart.java:911)
> [java] at org.jboss.tools.jst.jsp.jspeditor.JSPMultiPageEditor.pageChange(JSPMultiPageEditor.java:210)
> [java] at org.jboss.tools.jst.jsp.jspeditor.JSPMultiPageEditor.createPages(JSPMultiPageEditor.java:400)
> [java] at org.jboss.tools.jst.jsp.jspeditor.JSPMultiPageEditorPart.createPartControl(JSPMultiPageEditorPart.java:125)
> [java] at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:662)
> [java] at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:462)
> [java] at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595)
> [java] at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:313)
> [java] at org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:180)
> [java] at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:270)
> [java] at org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65)
> [java] at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:473)
> [java] at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1256)
> [java] at org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:1209)
> [java] at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:1608)
> [java] at org.eclipse.ui.internal.PartStack.add(PartStack.java:499)
> [java] at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:103)
> [java] at org.eclipse.ui.internal.PartStack.add(PartStack.java:485)
> [java] at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:112)
> [java] at org.eclipse.ui.internal.EditorSashContainer.addEditor(EditorSashContainer.java:63)
> [java] at org.eclipse.ui.internal.EditorAreaHelper.addToLayout(EditorAreaHelper.java:225)
> [java] at org.eclipse.ui.internal.EditorAreaHelper.addEditor(EditorAreaHelper.java:213)
> [java] at org.eclipse.ui.internal.EditorManager.createEditorTab(EditorManager.java:778)
> [java] at org.eclipse.ui.internal.EditorManager.openEditorFromDescriptor(EditorManager.java:677)
> [java] at org.eclipse.ui.internal.EditorManager.openEditor(EditorManager.java:638)
> [java] at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2854)
> [java] at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2762)
> [java] at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2754)
> [java] at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2705)
> [java] at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
> [java] at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2701)
> [java] at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2685)
> [java] at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2676)
> [java] at org.jboss.tools.vpe.ui.test.VpeTest.openEditor(VpeTest.java:222)
> [java] at org.jboss.tools.jsf.vpe.facelets.test.FaceletsComponentTest.performTestForFaceletComponent(FaceletsComponentTest.java:347)
> [java] at org.jboss.tools.jsf.vpe.facelets.test.FaceletsComponentTest.testDebug(FaceletsComponentTest.java:54)
> [java] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> [java] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> [java] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> [java] at java.lang.reflect.Method.invoke(Method.java:585)
> [java] at junit.framework.TestCase.runTest(TestCase.java:164)
> [java] at junit.framework.TestCase.runBare(TestCase.java:130)
> [java] at junit.framework.TestResult$1.protect(TestResult.java:106)
> [java] at junit.framework.TestResult.runProtected(TestResult.java:124)
> [java] at junit.framework.TestResult.run(TestResult.java:109)
> [java] at junit.framework.TestCase.run(TestCase.java:120)
> [java] at junit.framework.TestSuite.runTest(TestSuite.java:230)
> [java] at junit.framework.TestSuite.run(TestSuite.java:225)
> [java] at junit.framework.TestSuite.runTest(TestSuite.java:230)
> [java] at junit.framework.TestSuite.run(TestSuite.java:225)
> [java] at junit.extensions.TestDecorator.basicRun(TestDecorator.java:24)
> [java] at junit.extensions.TestSetup$1.protect(TestSetup.java:21)
> [java] at junit.framework.TestResult.runProtected(TestResult.java:124)
> [java] at junit.extensions.TestSetup.run(TestSetup.java:25)
> [java] at org.eclipse.test.EclipseTestRunner.run(EclipseTestRunner.java:354)
> [java] at org.eclipse.test.EclipseTestRunner.run(EclipseTestRunner.java:206)
> [java] at org.eclipse.test.UITestApplication$3.run(UITestApplication.java:195)
> [java] at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
> [java] at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
> [java] at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3468)
> [java] at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3115)
> [java] at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405)
> [java] at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
> [java] at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
> [java] at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
> [java] at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
> [java] at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)
> [java] at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
> [java] at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
> [java] at org.eclipse.test.UITestApplication.runApplication(UITestApplication.java:138)
> [java] at org.eclipse.test.UITestApplication.run(UITestApplication.java:60)
> [java] at org.eclipse.test.UITestApplication.start(UITestApplication.java:210)
> [java] at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
> [java] at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
> [java] at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
> [java] at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:368)
> [java] at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
> [java] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> [java] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> [java] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> [java] at java.lang.reflect.Method.invoke(Method.java:585)
> [java] at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559)
> [java] at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
> [java] at org.eclipse.equinox.launcher.Main.run(Main.java:1311)
> [java] at org.eclipse.equinox.launcher.Main.main(Main.java:1287)
> [java] at org.eclipse.core.launcher.Main.main(Main.java:34)