During Browsing on Welcome page XPCOM error occured:

org.eclipse.swt.SWTError: XPCOM error -2147467262
at org.eclipse.swt.browser.Mozilla.error(Mozilla.java:2414)
at org.eclipse.swt.browser.Mozilla.OnStateChange(Mozilla.java:3346)
at org.eclipse.swt.browser.Mozilla$10.method3(Mozilla.java:986)
at org.eclipse.swt.internal.mozilla.XPCOMObject.callback3(XPCOMObject.java:266)
at org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(Native Method)
at org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(OS.java:2229)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3159)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
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)

org.eclipse.swt.SWTError: XPCOM error -2147467259
at org.eclipse.swt.browser.Mozilla.error(Mozilla.java:2414)
at org.eclipse.swt.browser.Mozilla.onDispose(Mozilla.java:2429)
at org.eclipse.swt.browser.Mozilla$5.handleEvent(Mozilla.java:891)
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:3304)
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:3304)
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:3304)
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:3304)
at org.eclipse.swt.widgets.Widget.dispose(Widget.java:462)
at org.eclipse.ui.internal.PartPane.dispose(PartPane.java:180)
at org.eclipse.ui.internal.ViewPane.dispose(ViewPane.java:193)
at org.eclipse.ui.internal.WorkbenchPartReference.dispose(WorkbenchPartReference.java:681)
at org.eclipse.ui.internal.WorkbenchPage.disposePart(WorkbenchPage.java:1721)
at org.eclipse.ui.internal.WorkbenchPage.partRemoved(WorkbenchPage.java:1713)
at org.eclipse.ui.internal.ViewFactory.releaseView(ViewFactory.java:257)
at org.eclipse.ui.internal.Perspective.hideView(Perspective.java:606)
at org.eclipse.ui.internal.WorkbenchPage.hideView(WorkbenchPage.java:2387)
at org.eclipse.ui.internal.ViewPane.doHide(ViewPane.java:213)
at org.eclipse.ui.internal.PartStack.close(PartStack.java:541)
at org.eclipse.ui.internal.PartStack.close(PartStack.java:524)
at org.eclipse.ui.internal.PartStack$1.close(PartStack.java:120)
at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation$1.handleEvent(TabbedStackPresentation.java:83)
at org.eclipse.ui.internal.presentations.util.AbstractTabFolder.fireEvent(AbstractTabFolder.java:269)
at org.eclipse.ui.internal.presentations.util.AbstractTabFolder.fireEvent(AbstractTabFolder.java:278)
at org.eclipse.ui.internal.presentations.defaultpresentation.DefaultTabFolder.access$1(DefaultTabFolder.java:1)
at org.eclipse.ui.internal.presentations.defaultpresentation.DefaultTabFolder$1.closeButtonPressed(DefaultTabFolder.java:71)
at org.eclipse.ui.internal.presentations.PaneFolder.notifyCloseListeners(PaneFolder.java:631)
at org.eclipse.ui.internal.presentations.PaneFolder$3.close(PaneFolder.java:206)
at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:1595)
at org.eclipse.swt.custom.CTabFolder$1.handleEvent(CTabFolder.java:261)
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.Display.runDeferredEvents(Display.java:3540)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3161)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
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)