private static final String DEFAULT_CHROME_PATH_WINXP = "C:/Program Files/Google/Chrome/Application/";

    private static final String DEFAULT_CHROME_PATH_LINUX = "/opt/google/chrome";

    private static final String DEFAULT_CHROME_PATH_MAC = "/Applications";

    private final static String DEFAULT_CHROME_PATH_VISTA = "Local Settings/Application Data/Google/Chrome/Application";

    @Override

    public void initializeDefaultPreferences() {

        IPreferenceStore store = Activator.getDefault().getPreferenceStore();

        File folder = getDefaultFolder();

        if (ChromeDebugUtils.getExecutablePath(folder.getAbsolutePath()) != null) {

            store.setDefault(IConstants.PREF_NAME_CHROME_LOCATION, folder.getAbsolutePath());

        }

    }

    private File getDefaultFolder() {

        if (CoreUtil.isMac()) {

            return new File(DEFAULT_CHROME_PATH_MAC);

        } else if (CoreUtil.isLinux()) {

            return new File(DEFAULT_CHROME_PATH_LINUX);

        }

        String property = System.getProperty("user.home");

        File folder = new File(property, DEFAULT_CHROME_PATH_VISTA);

            folder = new File(DEFAULT_CHROME_PATH_WINXP);

        return folder;

    }