Facebook og tags not working

Hi!

I’ve installed facebook thumb fixer plugin (to make facebook shows the featured image of any article when someone share it on facebook). I checked the source code and og tags are made correctly

<meta property=”og:image” content=”http://www.myblog.com/wp-content/uploads/featuredimage.jpg”&gt;
<meta property=”og:title” content=”title”>
<meta property=”og:url” content=”url”>
<meta property=”og:site_name” content=”title”>
<meta property=”og:type” content=”blog”>

Although, facebook is not grabbing the images. I checked the facebook sharing debugger at https://developers.facebook.com/tools/debug/sharing/ and I get warnings in all the tags (Inferred Property: The ‘og:image’ property should be explicitly provided, even if a value can be inferred from other tags).

Anyone knows what’s up? How to solve it? I have no idea where is the fail.

Thanks in advance.
Regards.