Bug 293159 [Browser] Search for external browser in Preferences finds > 40 instances of firefox on Ubuntu 64bit, if started in /usr/bin
bundles/org.eclipse.ui.browser/src/org/eclipse/ui/internal/browser/WebBrowserPreferencePage.java
super();
	}
	/**
	 * Create the preference options.
	 * 
	 * @param parent
	 *            org.eclipse.swt.widgets.Composite
	 * @return org.eclipse.swt.widgets.Control
	 */
	protected Control createContents(Composite parent) {
		initializeDialogUnits(parent);
		PlatformUI.getWorkbench().getHelpSystem().setHelp(parent,
				ContextIds.PREF_BROWSER);
		Composite composite = new Composite(parent, SWT.NONE);
		GridLayout layout = new GridLayout();
		layout.numColumns = 2;
		layout.horizontalSpacing = convertHorizontalDLUsToPixels(4);
		layout.verticalSpacing = convertVerticalDLUsToPixels(3);
		layout.marginWidth = 0;
		layout.marginHeight = 0;
		composite.setLayout(layout);
		GridData data = new GridData(SWT.FILL, SWT.FILL, true, false);
		composite.setLayoutData(data);
		Label label = new Label(composite, SWT.WRAP);
		label.setText(Messages.preferenceWebBrowserDescription);
		data = new GridData(SWT.FILL, SWT.NONE, false, false);
		data.horizontalSpan = 2;
		data.widthHint = 275;
		label.setLayoutData(data);
		internal = new Button(composite, SWT.RADIO);