If you want to open the social icons links in the secondary navigation in a new window you can go to admin > Divi Theme Options > Integration > Add code to the < head > of your blog
** Tested OK in Divi version 3.0 **
** Tested Version: 2.7.8
** Tested in Divi 2.6.2

In the section, add the following code :

<script type="text/javascript">
jQuery(".et-social-icon a").attr('target', '_blank');

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