Hey there,

I am not really sure "social login" extension is it support integration with Easyblog, but what I know is Jfbconnect already done this login integration with Easyblog.

After you installed Jfbconnect, you can enable this "Integrate With JFBConnect" option from Easyblog backend.

As long as that login module display on your site, all will be same purpose to allow user login in your site.

If you would like to hack your login link in Easyblog login dropdown section, you have to hack on this file JoomlaFolder\components\com_easyblog\themes\wireframe\toolbar\default.php

Hope this help.