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
internal.setSelection(WebBrowserPreference.getBrowserChoice() == WebBrowserPreference.INTERNAL);
		external.setSelection(WebBrowserPreference.getBrowserChoice() == WebBrowserPreference.EXTERNAL);
		
		IStructuredSelection sele = ((IStructuredSelection) tableViewer
				.getSelection());
		boolean sel = sele.getFirstElement() != null &&
				!(sele.getFirstElement() instanceof SystemBrowserDescriptor);
		edit.setEnabled(sel);
		remove.setEnabled(sel);
		Dialog.applyDialogFont(composite);
		return composite;
	}
	/**
	 * Initializes this preference page using the passed workbench.
	 * 
	 * @param workbench
	 *            the current workbench
	 */
	public void init(IWorkbench workbench) {
		
	}
	/**
	 * 
	 */
	public void setVisible(boolean visible) {
		super.setVisible(visible);
		if (visible)
			setTitle(Messages.preferenceWebBrowserTitle);
	}
	protected Object getSelection(ISelection sel2) {