It's sad you have to leave a one star review and bring our rating down because you don't understand how a plugin works. We put links to our Facebook and Twitter pages as an example of how the tabs work. You have to edit the plugin and add your own links in the parameters. Takes a total of 15 seconds. We can't "magically" know the link to your Facebook page. In the future, please ask for help first instead of tarnishing someones rating. Not to mention its free AND a PDF download with complete instructions is available to download with a FULL explanation and screenshots.
In this plugin was missing icon for google+, so I wrote to creator and guess what... just few hours later I get email about new version available for download.
So great support. Thank you very much, I can recommend this extension.
Sorry for my english, but I wanted to write this review for this great plugin.