diff --git a/.gitignore b/.gitignore
index af11a73..c5e4371 100644
--- a/.gitignore
+++ b/.gitignore
@@ -42,3 +42,5 @@ firefox-3.6.4.source.tar.bz2
 /firefox-langpacks-11.0-20120313.tar.xz
 /firefox-12.0.source.tar.bz2
 /firefox-langpacks-12.0-20120424.tar.xz
+/firefox-13.0.source.tar.bz2
+/firefox-langpacks-13.0-20120604.tar.xz
diff --git a/firefox.spec b/firefox.spec
index a8645bb..14b9b1a 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -16,7 +16,7 @@
 %define default_bookmarks_file %{_datadir}/bookmarks/default-bookmarks.html
 %define firefox_app_id \{ec8030f7-c20a-464f-9b0e-13a3a9e97384\}
 
-%global xulrunner_version      12.0
+%global xulrunner_version      13.0
 %global xulrunner_release      1
 %global alpha_version          0
 %global beta_version           0
@@ -51,7 +51,7 @@
 
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
-Version:        12.0
+Version:        13.0
 Release:        1%{?pre_tag}%{?dist}
 URL:            http://www.mozilla.org/projects/firefox/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
@@ -365,6 +365,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #---------------------------------------------------------------------
 
 %changelog
+* Tue Jun 5 2012 Martin Stransky <stransky@redhat.com> - 13.0-1
+- Update to 13.0
+
 * Tue Apr 24 2012 Martin Stransky <stransky@redhat.com> - 12.0-1
 - Update to 12.0
 
diff --git a/sources b/sources
index 73c0d6e..f7fce4c 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,4 @@
 80c3e5927274de7f181fb5f931ac5fd4  firefox-12.0.source.tar.bz2
 0bd5a742f2922c5d83c5e1abec51f056  firefox-langpacks-12.0-20120424.tar.xz
+f50ca7656eec47030b396f39075fa980  firefox-13.0.source.tar.bz2
+5c7a20568d4dfdc78436add580bed68b  firefox-langpacks-13.0-20120604.tar.xz