The issue is due to another extension re-loading the Facebook Javascript file. The code that's being used is also the older style of loading the Facebook Javascript library, which is adding to the conflict since the old version can't be used with the newer version, which we use.
Unfortunately, I can't tell what extension is loading the Facebook Javascript library just from looking at your code. The HTML that's being inserted into the page that needs to be removed is:
<div id="fb-root"></div>
<script>window.fbAsyncInit = function() {FB.init({ status: true, cookie: true, xfbml: true});};(function(d, s, id,debug) {
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id)) return;
js = d.createElement(s); js.id = id;
js.src = "//connect.facebook.net/en_US/all" + (debug ? "/debug" : "") + ".js";
fjs.parentNode.insertBefore(js, fjs);
}(document, "script", "facebook-jssdk", /*debug*/ false));</script>That could be from a Facebook or social network specific extension, an SEO plugin or an extension that simply has some simple Facebook integration built-in.
From what I see, the code is inserted on every page, which means there's a system plugin that's likely including the code. If you can check the following, it may help narrow things down:
* Go to your Plugin Manager
* Filter by "Type" of "System"
* Look through your system plugins for any social network or Facebook specific plugins. If found, try disabling to see if that gets things going.
* If you are using sh404SEF, use the "Type" filter and filter by the "sh404core". If there is a "Social Network" plugin (or something similar) there, disable it.
Let me know if the above helps or if there's more assistance we can provide.
Thanks,
Alex
Facebook button not working
