link to homepage when my drupal not in root folder of server

Hi,
I think this is not a module bug. Open your settings.php and provide there correct $base_url.

russian:
Проблема не в модуле. Открой settings.php и укажи там правильный $base_url, после чего сбрось кэш.

I digged deeper - you right, this is module bug.. OK, I will search for a solution.

russian:
Да, взглянул более внимательно - действительно в модуле. Буду искать решение, там довольно неоднозначный баг.

Can't reproduce on latest dev

I think that bug is still exists even in the latest dev. See line 250 in path_breadcrumbs.module.

Hmm.. l() called twice.

diff --git a/path_breadcrumbs.module b/path_breadcrumbs.module
index 6ea51e4..3ab4da8 100644
--- a/path_breadcrumbs.module
+++ b/path_breadcrumbs.module
@@ -255,9 +255,15 @@ function path_breadcrumbs_breadcrumb($variables) {
         if ($snippet == PATH_BREADCRUMBS_RICH_SNIPPETS_MICRODATA) {
           $title = '<span itemprop="title">' . $title . '</span>';
         }
-
+        $props = array();
+        foreach ($options['attributes'] as $prop => $value) {
+          $props_str = ' ';
+          $props[] = $prop . '=' . '"' . $value . '"';
+        }
+        $props_str .= implode(' ', $props);
         // Build new text or link breadcrumb.
-        $new_breadcrumb = $href ? l($title, $href, $options) : $title;
+        $new_breadcrumb = $href ? '<a href="' . $href . '"'.$props_str.'>' . $title . '</a>' : $title;
       }
       else {
         // If no rich snippets support do not process breadcrumb.

No, l() called once. But if $href contains URL like /dirname/node/1 preg_match() will get this url and then this URL will be provided to l() again. So I see problem in preg_match().

l() adds $base_url to href automatically here. We are parsing it and calling l() a second time, so we have 2 $base_url's in href.

Exactly. But I have to parse link because I should provide rich snippers for all breadcrumbs (even if they were generated not by my module). But I hope that I found a solution: see hook_menu_breadcrumb_alter(). I hope that I able to change current theming function to this one and remove preg_match() at all.

If you succeed, it will be more flexible. I will follow anyway :)

Unfortunately I am wrong, see drupal_get_breadcrumb: menu_get_active_breadcrumb() called only if there are no breadcrumbs on the page... So we still have to search for a better solution.

I think, #6 can be temporary fix for someone

yep. It is good as temporary but not as permanent solution.

Permanent solution found. Commited at e6738bd. Thanks all for your time.