org.eclipse.swt.SWTError: XPCOM error -2147467262
	at org.eclipse.swt.browser.Mozilla.error(Mozilla.java:2347)
	at org.eclipse.swt.browser.Mozilla.unhookDOMListeners(Mozilla.java:2777)
	at org.eclipse.swt.browser.Mozilla.onDispose(Mozilla.java:2370)
	at org.eclipse.swt.browser.Mozilla$5.handleEvent(Mozilla.java:872)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1282)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1263)
	at org.eclipse.swt.widgets.Widget.release(Widget.java:1080)
	at org.eclipse.swt.widgets.Control.release(Control.java:3302)
	at org.eclipse.swt.widgets.Composite.releaseChildren(Composite.java:1293)
	at org.eclipse.swt.widgets.Widget.release(Widget.java:1083)
	at org.eclipse.swt.widgets.Control.release(Control.java:3302)
	at org.eclipse.swt.widgets.Composite.releaseChildren(Composite.java:1293)
	at org.eclipse.swt.widgets.Widget.release(Widget.java:1083)
	at org.eclipse.swt.widgets.Control.release(Control.java:3302)
	at org.eclipse.swt.widgets.Composite.releaseChildren(Composite.java:1293)
	at org.eclipse.swt.widgets.Widget.release(Widget.java:1083)
	at org.eclipse.swt.widgets.Control.release(Control.java:3302)
	at org.eclipse.swt.widgets.Composite.releaseChildren(Composite.java:1293)
	at org.eclipse.swt.widgets.Widget.release(Widget.java:1083)
	at org.eclipse.swt.widgets.Control.release(Control.java:3302)
	at org.eclipse.swt.widgets.Composite.releaseChildren(Composite.java:1293)
	at org.eclipse.swt.widgets.Widget.release(Widget.java:1083)
	at org.eclipse.swt.widgets.Control.release(Control.java:3302)
	at org.eclipse.swt.widgets.Composite.releaseChildren(Composite.java:1293)
	at org.eclipse.swt.widgets.Canvas.releaseChildren(Canvas.java:208)
	at org.eclipse.swt.widgets.Decorations.releaseChildren(Decorations.java:469)
	at org.eclipse.swt.widgets.Shell.releaseChildren(Shell.java:2303)
	at org.eclipse.swt.widgets.Widget.release(Widget.java:1083)
	at org.eclipse.swt.widgets.Control.release(Control.java:3302)
	at org.eclipse.swt.widgets.Widget.dispose(Widget.java:462)
	at org.eclipse.swt.widgets.Shell.dispose(Shell.java:2239)
	at org.eclipse.swt.widgets.Display.release(Display.java:3221)
	at org.eclipse.swt.graphics.Device.dispose(Device.java:237)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:131)
	at org.eclipse.pde.internal.junit.runtime.UITestApplication.start(UITestApplication.java:47)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1407)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1383)