diff --git a/phpBB/styles/prosilver/template/navbar_header.html b/phpBB/styles/prosilver/template/navbar_header.html
index 77f5dae0c0..fa750cd49a 100644
--- a/phpBB/styles/prosilver/template/navbar_header.html
+++ b/phpBB/styles/prosilver/template/navbar_header.html
@@ -178,32 +178,41 @@
 	</ul>
 
 	<ul id="nav-breadcrumbs" class="nav-breadcrumbs linklist navlinks" role="menubar">
-		<!-- DEFINE $MICRODATA = ' itemtype="http://schema.org/ListItem" itemprop="itemListElement" itemscope' -->
+		{% set MICRODATA = 'itemtype="https://schema.org/ListItem" itemprop="itemListElement" itemscope' %}
 		{% set navlink_position = 1 %}
-		<!-- EVENT overall_header_breadcrumbs_before -->
-		<li class="breadcrumbs" itemscope itemtype="http://schema.org/BreadcrumbList">
-			<!-- IF U_SITE_HOME -->
-				<span class="crumb" {$MICRODATA}><a href="{U_SITE_HOME}" itemtype="https://schema.org/Thing" itemscope itemprop="item" data-navbar-reference="home"><i class="icon fa-home fa-fw" aria-hidden="true"></i><span itemprop="name">{L_SITE_HOME}</span></a><meta itemprop="position" content="{{ navlink_position }}{% set navlink_position = navlink_position + 1 %}" /></span>
-			<!-- ENDIF -->
-			<!-- EVENT overall_header_breadcrumb_prepend -->
-				<span class="crumb" {$MICRODATA}><a href="{U_INDEX}" itemtype="https://schema.org/Thing" itemscope itemprop="item" accesskey="h" data-navbar-reference="index"><!-- IF not U_SITE_HOME --><i class="icon fa-home fa-fw"></i><!-- ENDIF --><span itemprop="name">{L_INDEX}</span></a><meta itemprop="position" content="{{ navlink_position }}{% set navlink_position = navlink_position + 1 %}" /></span>
 
-			<!-- BEGIN navlinks -->
-				<!-- EVENT overall_header_navlink_prepend -->
-				<span class="crumb" {$MICRODATA}<!-- IF navlinks.MICRODATA --> {navlinks.MICRODATA}<!-- ENDIF -->><a href="{navlinks.U_VIEW_FORUM}" itemtype="https://schema.org/Thing" itemscope itemprop="item"><span itemprop="name">{navlinks.FORUM_NAME}</span></a><meta itemprop="position" content="{{ navlink_position }}{% set navlink_position = navlink_position + 1 %}" /></span>
-				<!-- EVENT overall_header_navlink_append -->
-			<!-- END navlinks -->
-			<!-- EVENT overall_header_breadcrumb_append -->
+		{% EVENT overall_header_breadcrumbs_before %}
+
+		<li class="breadcrumbs" itemscope itemtype="https://schema.org/BreadcrumbList">
+
+			{% if U_SITE_HOME %}
+				<span class="crumb" {{ MICRODATA }}><a href="{{ U_SITE_HOME }}" id="{{ U_SITE_HOME | e('html_attr') }}" itemtype="https://schema.org/Thing" itemscope itemprop="item" data-navbar-reference="home"><i class="icon fa-home fa-fw" aria-hidden="true"></i><span itemprop="name">{{ L_SITE_HOME }}</span></a><meta itemprop="position" content="{{ navlink_position }}{% set navlink_position = navlink_position + 1 %}" /></span>
+			{% endif %}
+
+			{% EVENT overall_header_breadcrumb_prepend %}
+				<span class="crumb" {{ MICRODATA }}><a href="{{ U_INDEX }}" id="{{ U_INDEX | e('html_attr') }}" itemtype="https://schema.org/Thing" itemscope itemprop="item" accesskey="h" data-navbar-reference="index">{% if not U_SITE_HOME %}<i class="icon fa-home fa-fw"></i>{% endif %}<span itemprop="name">{{ L_INDEX }}</span></a><meta itemprop="position" content="{{ navlink_position }}{% set navlink_position = navlink_position + 1 %}" /></span>
+
+			{% for navlinks in navlinks %}
+				{% set NAVLINK_NAME = navlinks.BREADCRUMB_NAME | default(navlinks.FORUM_NAME) %}
+				{% set NAVLINK_LINK = navlinks.U_BREADCRUMB | default(navlinks.U_VIEW_FORUM) %}
+
+				{% EVENT overall_header_navlink_prepend %}
+				<span class="crumb" {{ MICRODATA }}{% if navlinks.MICRODATA %} {{ navlinks.MICRODATA }}{% endif %}><a href="{{ NAVLINK_LINK }}" id="{{ NAVLINK_LINK | e('html_attr') }}" itemtype="https://schema.org/Thing" itemscope itemprop="item"><span itemprop="name">{{ NAVLINK_NAME }}</span></a><meta itemprop="position" content="{{ navlink_position }}{% set navlink_position = navlink_position + 1 %}" /></span>
+				{% EVENT overall_header_navlink_append %}
+			{% endfor %}
+
+			{% EVENT overall_header_breadcrumb_append %}
 		</li>
-		<!-- EVENT overall_header_breadcrumbs_after -->
 
-		<!-- IF S_DISPLAY_SEARCH and not S_IN_SEARCH -->
+		{% EVENT overall_header_breadcrumbs_after %}
+
+		{% if S_DISPLAY_SEARCH and not S_IN_SEARCH %}
 			<li class="rightside responsive-search">
-				<a href="{U_SEARCH}" title="{L_SEARCH_ADV_EXPLAIN}" role="menuitem">
-					<i class="icon fa-search fa-fw" aria-hidden="true"></i><span class="sr-only">{L_SEARCH}</span>
+				<a href="{{ U_SEARCH }}" title="{{ lang('SEARCH_ADV_EXPLAIN') }}" role="menuitem">
+					<i class="icon fa-search fa-fw" aria-hidden="true"></i><span class="sr-only">{{ lang('SEARCH') }}</span>
 				</a>
 			</li>
-		<!-- ENDIF -->
+		{% endif %}
 	</ul>
 
 	</div>