Open your theme functions.php and add the following code:
function xsimu_breadcrumb() {
echo ' <ul id="breadcrumbs">';
if (!is_home()) {
echo '<li> <a href="';
echo get_option('home');
echo '">';
echo 'Home';
echo "</a><span class='separator'>»</span></li>";
if (is_category() || is_single()) {
echo ' <li>';
the_category('<span class="separator">»</span></li><li> ');
if (is_single()) {
echo "</li><li><span class='separator'>»</span>";
the_title();
echo '</li>';
}
} elseif (is_page()) {
echo '<li>';
echo the_title();
echo '</li>';
}
}
elseif (is_tag()) {single_tag_title();}
elseif (is_day()) {echo"<li>Archive for "; the_time('F jS, Y'); echo'</li>';}
elseif (is_month()) {echo"<li>Archive for "; the_time('F, Y'); echo'</li>';}
elseif (is_year()) {echo"<li>Archive for "; the_time('Y'); echo'</li>';}
elseif (is_author()) {echo"<li>Author Archive"; echo'</li>';}
elseif (isset($_GET['paged']) && !empty($_GET['paged'])) {echo "<li>Blog Archives"; echo'</li>';}
elseif (is_search()) {echo"<li>Search Results"; echo'</li>';}
echo '</ul>';
}
Add the following function in one of your templates. Most times you will use the header.php
<?php xsimu_breadcrumb(); ?>
Congratulations. You are done;)