diff --git a/.gitignore b/.gitignore
index 23aabc7..9b32789 100644
--- a/.gitignore
+++ b/.gitignore
@@ -52,3 +52,5 @@ firefox-3.6.4.source.tar.bz2
 /firefox-langpacks-15.0-20120827.tar.xz
 /firefox-15.0.1.source.tar.bz2
 /firefox-langpacks-15.0.1-20120911.tar.xz
+/firefox-16.0.source.tar.bz2
+/firefox-langpacks-16.0-20121008.tar.xz
diff --git a/firefox.sh.in b/firefox.sh.in
index 6004ea6..2c7d5c0 100644
--- a/firefox.sh.in
+++ b/firefox.sh.in
@@ -143,6 +143,12 @@ export FONTCONFIG_PATH
 GNOME_DISABLE_CRASH_DIALOG=1
 export GNOME_DISABLE_CRASH_DIALOG
 
+##
+## Use /var/tmp instead of /tmp because of 1GB /tmp limit in  Fedora 18 and later
+##
+TMPDIR="/var/tmp"
+export TMPDIR
+
 # OK, here's where all the real work gets done
 
 
diff --git a/firefox.spec b/firefox.spec
index ebd7265..b8035ea 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -16,8 +16,8 @@
 %define default_bookmarks_file %{_datadir}/bookmarks/default-bookmarks.html
 %define firefox_app_id \{ec8030f7-c20a-464f-9b0e-13a3a9e97384\}
 
-%global xulrunner_version      15.0.1
-%global xulrunner_version_max  15.1
+%global xulrunner_version      16.0
+%global xulrunner_version_max  16.1
 %global xulrunner_release      1
 %global alpha_version          0
 %global beta_version           0
@@ -55,14 +55,14 @@
 
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
-Version:        15.0.1
+Version:        16.0
 Release:        1%{?pre_tag}%{?dist}
 URL:            http://www.mozilla.org/projects/firefox/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 Group:          Applications/Internet
 Source0:        ftp://ftp.mozilla.org/pub/firefox/releases/%{version}%{?pre_version}/source/firefox-%{version}%{?pre_version}.source.tar.bz2
 %if %{build_langpacks}
-Source1:        firefox-langpacks-%{version}%{?pre_version}-20120911.tar.xz
+Source1:        firefox-langpacks-%{version}%{?pre_version}-20121008.tar.xz
 %endif
 Source10:       firefox-mozconfig
 Source11:       firefox-mozconfig-branded
@@ -396,6 +396,10 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #---------------------------------------------------------------------
 
 %changelog
+* Mon Oct  8 2012 Jan Horak <jhorak@redhat.com> - 16.0-1
+- Update to 16.0
+- Use /var/tmp instead of /tmp (rhbz#860814)
+
 * Tue Sep 11 2012 Jan Horak <jhorak@redhat.com> - 15.0.1-1
 - Update to 15.0.1
 
diff --git a/sources b/sources
index 0ce6ac2..c540c31 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-743ba71fbce7b32023405db02d44143f  firefox-15.0.1.source.tar.bz2
-78987e5f15584ad1326b28495709f0df  firefox-langpacks-15.0.1-20120911.tar.xz
+04cbefaebaf77693bacd11145ece104f  firefox-16.0.source.tar.bz2
+c643aa159483514d0ecde0b6643bd31f  firefox-langpacks-16.0-20121008.tar.xz