Hi tomvas,
into the header.php and footer.php of your theme you have some lines like this: <li class="facebook" data-toggle="tooltip" data-placement="bottom" title="Facebook"><a href="<?php echo esc_url($wl_theme_options['fb_link']); ?>"><i class="fa fa-facebook"></i></a></li>
You need just to add target=”_blank” as you said in this way:
<li class="facebook" data-toggle="tooltip" data-placement="bottom" title="Facebook"><a target="_blank" href="<?php echo esc_url($wl_theme_options['fb_link']); ?>"><i class="fa fa-facebook"></i></a></li>
