How to use Facebook Connect's user picture in Views?
I found a solution: You can use the following hook to copy facebook's user image and save it as drupal user image. Make sure to ask your users to allow this!

/* Copy facebook image if no user image is present.
   See: http://drupal.org/node/1764176 */
function custom_api_user_login (&amp;$edit, $account) {
  $fbuid = fbconnect_get_fbuid();
  if(is_null($account-&gt;picture) &amp;&amp; $fbuid &amp;&amp; isset($account-&gt;data['fb_avatar']) &amp;&amp; $account-&gt;data['fb_avatar']){
    #$test = fbconnect_user_picture_override(array('fbuid' =&gt; $fbuid, 'account' =&gt; $account, 'size' =&gt; '25'));
    #drupal_set_message(print_r($test, true), 'status', true);

    if(copy("http://graph.facebook.com/".$fbuid."/picture?type=normal", '/tmp/'.$fbuid.'.jpg')) {
      $path = '/tmp/'.$fbuid.'.jpg';
      $file = new StdClass();
      $file-&gt;uid = $account-&gt;uid;
      $file-&gt;uri = $path;
      $file-&gt;filename = $fbuid;
      $file-&gt;filemime = file_get_mimetype($file-&gt;uri);
      $file-&gt;filesize = filesize($path);
      $file-&gt;status = FILE_STATUS_PERMANENT;
      $dest = "public://" . $fbuid.'.jpg';
      $file = file_copy($file, $dest);
      file_save($file);
      $edit['picture'] = $file;
      user_save($account, $edit);
      #drupal_set_message(print_r('&lt;img typeof="foaf:Image" src="'.$path.'" alt="Naomi Yoshida"&gt;', true), 'status', true);
    } else {
      drupal_set_message(print_r('Kopieren schlug fehl', true), 'status', true);
    }
   }
}