OpenCart 2.1 - Get customer First name in header.tpl
<p>Adds: <code>$data['customer_firstname'] = $this-&gt;customer-&gt;getFirstName();</code> in <code>header.php</code></p>

<p>You may be something:</p>

<pre><code>&lt;?php
class ControllerCommonHeader extends Controller {
    public function index() {

        $data['customer_firstname'] = $this-&gt;customer-&gt;getFirstName();
</code></pre>

<p>Displays the name eg in header.tpl: <code>&lt;?php echo $customer_firstname ?&gt;</code></p>

<p>Login to your store manager: go to extensions, modifications and upgrade (button top right).</p>

<p>Ready!</p>