woocommerce-breadcrumbs.php

<?php if (is_product() || is_cart() || is_checkout() || is_wc_endpoint_url('order-received')) {

	if (is_product()) {
				
		echo '<h1>Register</h1>';
				
	} elseif (is_cart()) {
				
		echo '<h1>Review Order</h1>';
		
	} elseif (is_wc_endpoint_url('order-received')) {
				
		echo '<h1>Confirmation</h1>';
				
	} elseif (is_checkout()) {
				
		echo '<h1>Checkout</h1>';
				
	} else {
				
		the_title('<h1>','</h1>');
				
	} ?>

	<ul class="breadcrumbs woocommerce">
		<li>
			<strong<?php if (is_product()) echo ' class="active"';?>><span>Step 1:</span> Register</strong>
		</li>
		<li>
			<strong<?php if (is_cart()) echo ' class="active"';?>><span>Step 2:</span> Review Order</strong>		
		</li>
		<li>
			<strong<?php if (is_checkout()&&!is_wc_endpoint_url('order-received')) echo ' class="active"';?>><span>Step 3:</span> Checkout</strong>
		</li>
		<li>
			<strong<?php if (is_wc_endpoint_url('order-received')) echo ' class="active"';?>><span>Step 4:</span> Confirmation</strong>
		</li>
	</ul>
<?php } ?>