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Recently I changed Facebook Like buttons on several of my sites for AddThis counting buttons which include the Facebook count (or so I assume that is what the number in the box next to 'f like' is).

From a code point-of-view this is simpler and gives also counts and sharing buttons for other services. However, the counts were mostly reset to 0 or at least to a much lower number than before.

Why the discrepancy? What could the two things be counting differently?

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Have you added this line to your pages' HTML tag: <html xmlns:fb="facebook.com/2008/fbml">; – paulmorriss Jun 15 '11 at 13:35
No... What does that do? It's not in the instructions (See link in the question). – Itai Jun 15 '11 at 14:04
Nothing helps so far... Is there any way to diagnose this? – Itai Jun 25 '11 at 19:17
WHat were the offending elements? I have the same problem. – user34002 Nov 25 '13 at 12:22

The page http://www.addthis.com/social-plugins/facebook-like-button states a different namespace to that mentioned above. It should be:

<html xmlns:fb="http://ogp.me/ns/fb#">

I've just tried it and it works fine, my counter is back.

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Add this to the HTML tag at the top of each of your files:

<html xmlns:fb="http://www.facebook.com/2008/fbml">

This comes from this page: http://www.addthis.com/features/facebook-like-button

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No effect... All counters remain the same. – Itai Jun 15 '11 at 14:24
Other people have had the same problem: addthis.com/forum/… Do you want to check to see if you haven't made the same mistakes. – paulmorriss Jun 15 '11 at 16:01
up vote 0 down vote accepted

It is a bug. I discovered that some of the AddThis customization options cause the FB totals not to be added correctly. I have stopped using the offending elements.

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