diff --git a/.firefox.metadata b/.firefox.metadata
index fbd04ec..46731b9 100644
--- a/.firefox.metadata
+++ b/.firefox.metadata
@@ -1,2 +1,2 @@
-87364e16f99b172e677e245fa0805972d8b35070 SOURCES/firefox-38.0.1esr.source.tar.bz2
-a3504ff7a15f58ec8175b7774769f78fcb0785c7 SOURCES/firefox-langpacks-38.0.1esr-20150515.tar.bz2
+207b9e5a0dcb2bacdccd9e57051421ab4cb6e57c SOURCES/firefox-38.1.0esr.source.tar.bz2
+1604d2f8472ac39865bd1e458df73820954fb5ca SOURCES/firefox-langpacks-38.1.0esr-20150625.tar.bz2
diff --git a/.gitignore b/.gitignore
index b4d3ef8..c30e361 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,2 @@
-SOURCES/firefox-38.0.1esr.source.tar.bz2
-SOURCES/firefox-langpacks-38.0.1esr-20150515.tar.bz2
+SOURCES/firefox-38.1.0esr.source.tar.bz2
+SOURCES/firefox-langpacks-38.1.0esr-20150625.tar.bz2
diff --git a/SOURCES/firefox-centos-default-prefs.js b/SOURCES/firefox-centos-default-prefs.js
deleted file mode 100644
index 2b5da25..0000000
--- a/SOURCES/firefox-centos-default-prefs.js
+++ /dev/null
@@ -1,28 +0,0 @@
-pref("app.update.auto",                     false);
-pref("app.update.enabled",                  false);
-pref("app.update.autoInstallEnabled",       false);
-pref("browser.backspace_action",            2);
-pref("browser.display.use_system_colors",   true);
-pref("browser.download.folderList",         1);
-pref("browser.link.open_external",          3);
-pref("browser.shell.checkDefaultBrowser",   false);
-pref("general.smoothScroll",                true);
-pref("general.useragent.vendor",            "CentOS");
-pref("general.useragent.vendorSub",         "FIREFOX_RPM_VR");
-pref("intl.locale.matchOS",                 true);
-pref("storage.nfs_filesystem",              false);
-pref("dom.ipc.plugins.enabled.nswrapper*",  false);
-pref("network.manage-offline-status",       true);
-pref("toolkit.networkmanager.disable", false);
-pref("browser.startup.homepage",            "data:text/plain,browser.startup.homepage=file:///usr/share/doc/HTML/index.html");
-pref("toolkit.storage.synchronous",         0);
-pref("startup.homepage_override_url",       "http://www.centos.org");
-pref("startup.homepage_welcome_url",        "http://www.centos.org");
-/* Workaround for rhbz#1134876 */
-pref("javascript.options.baselinejit",      false);
-pref("extensions.shownSelectionUI",         true);
-/* Workaround for rhbz#1110291 */
-pref("network.negotiate-auth.allow-insecure-ntlm-v1", true);
-/* Workaround for mozbz#1063315 */
-pref("security.use_mozillapkix_verification", false);
-pref("geo.wifi.uri", "https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%");
diff --git a/SOURCES/firefox-nss-3.18.0.patch b/SOURCES/firefox-nss-3.18.0.patch
deleted file mode 100644
index 1a2d195..0000000
--- a/SOURCES/firefox-nss-3.18.0.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-diff -up mozilla-release/configure.in.old mozilla-release/configure.in
---- mozilla-release/configure.in.old	2015-04-28 20:31:45.000000000 +0200
-+++ mozilla-release/configure.in	2015-04-28 20:32:40.807783614 +0200
-@@ -3627,7 +3627,7 @@ MOZ_ARG_WITH_BOOL(system-nss,
-     _USE_SYSTEM_NSS=1 )
- 
- if test -n "$_USE_SYSTEM_NSS"; then
--    AM_PATH_NSS(3.18.1, [MOZ_NATIVE_NSS=1], [AC_MSG_ERROR([you don't have NSS installed or your version is too old])])
-+    AM_PATH_NSS(3.18.0, [MOZ_NATIVE_NSS=1], [AC_MSG_ERROR([you don't have NSS installed or your version is too old])])
- fi
- 
- if test -n "$MOZ_NATIVE_NSS"; then
diff --git a/SOURCES/firefox-nss-3.19.1.patch b/SOURCES/firefox-nss-3.19.1.patch
new file mode 100644
index 0000000..53c8426
--- /dev/null
+++ b/SOURCES/firefox-nss-3.19.1.patch
@@ -0,0 +1,12 @@
+diff -up mozilla-esr38/configure.in.nss-3.19.0 mozilla-esr38/configure.in
+--- mozilla-esr38/configure.in.nss-3.19.0	2015-06-25 10:36:40.205019840 +0200
++++ mozilla-esr38/configure.in	2015-06-25 11:58:46.859155245 +0200
+@@ -3627,7 +3627,7 @@ MOZ_ARG_WITH_BOOL(system-nss,
+     _USE_SYSTEM_NSS=1 )
+ 
+ if test -n "$_USE_SYSTEM_NSS"; then
+-    AM_PATH_NSS(3.19.2, [MOZ_NATIVE_NSS=1], [AC_MSG_ERROR([you don't have NSS installed or your version is too old])])
++    AM_PATH_NSS(3.19.1, [MOZ_NATIVE_NSS=1], [AC_MSG_ERROR([you don't have NSS installed or your version is too old])])
+ fi
+ 
+ if test -n "$MOZ_NATIVE_NSS"; then
diff --git a/SOURCES/firefox-redhat-default-prefs.js b/SOURCES/firefox-redhat-default-prefs.js
new file mode 100644
index 0000000..01a917c
--- /dev/null
+++ b/SOURCES/firefox-redhat-default-prefs.js
@@ -0,0 +1,28 @@
+pref("app.update.auto",                     false);
+pref("app.update.enabled",                  false);
+pref("app.update.autoInstallEnabled",       false);
+pref("browser.backspace_action",            2);
+pref("browser.display.use_system_colors",   true);
+pref("browser.download.folderList",         1);
+pref("browser.link.open_external",          3);
+pref("browser.shell.checkDefaultBrowser",   false);
+pref("general.smoothScroll",                true);
+pref("general.useragent.vendor",            "Red Hat");
+pref("general.useragent.vendorSub",         "FIREFOX_RPM_VR");
+pref("intl.locale.matchOS",                 true);
+pref("storage.nfs_filesystem",              false);
+pref("dom.ipc.plugins.enabled.nswrapper*",  false);
+pref("network.manage-offline-status",       true);
+pref("toolkit.networkmanager.disable", false);
+pref("browser.startup.homepage",            "data:text/plain,browser.startup.homepage=file:///usr/share/doc/HTML/index.html");
+pref("toolkit.storage.synchronous",         0);
+pref("startup.homepage_override_url",       "http://www.redhat.com");
+pref("startup.homepage_welcome_url",        "http://www.redhat.com");
+/* Workaround for rhbz#1134876 */
+pref("javascript.options.baselinejit",      false);
+pref("extensions.shownSelectionUI",         true);
+/* Workaround for rhbz#1110291 */
+pref("network.negotiate-auth.allow-insecure-ntlm-v1", true);
+/* Workaround for mozbz#1063315 */
+pref("security.use_mozillapkix_verification", false);
+pref("geo.wifi.uri", "https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%");
diff --git a/SPECS/firefox.spec b/SPECS/firefox.spec
index 0255b2f..35326d0 100644
--- a/SPECS/firefox.spec
+++ b/SPECS/firefox.spec
@@ -53,7 +53,7 @@
 
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
-Version:        38.0.1
+Version:        38.1.0
 Release:        1%{?prever}%{?dist}
 URL:            http://www.mozilla.org/projects/firefox/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
@@ -61,11 +61,11 @@ Group:          Applications/Internet
 # From ftp://ftp.mozilla.org/pub/firefox/releases/%{version}%{?pretag}/source
 Source0:        firefox-%{version}%{?prever}%{?ext_version}.source.tar.bz2
 %if %{build_langpacks}
-Source1:        firefox-langpacks-%{version}%{?ext_version}-20150515.tar.bz2
+Source1:        firefox-langpacks-%{version}%{?ext_version}-20150625.tar.bz2
 %endif
 Source10:       firefox-mozconfig
 Source11:       firefox-mozconfig-branded
-Source12:       firefox-centos-default-prefs.js
+Source12:       firefox-redhat-default-prefs.js
 Source20:       firefox.desktop
 Source21:       firefox.sh.in
 Source23:       firefox.1
@@ -79,7 +79,7 @@ Patch6:         webrtc-arch-cpu.patch
 Patch7:         build-no-format.patch
 Patch8:         firefox-ppc64le.patch
 Patch9:         firefox-debug.patch
-Patch10:        firefox-nss-3.18.0.patch
+Patch10:        firefox-nss-3.19.1.patch
 Patch11:        build-nspr-prbool.patch
 
 # RPM specific patches
@@ -199,7 +199,7 @@ cd %{tarballdir}
 %if %{?debug_build}
 %patch9 -p1 -b .debug
 %endif
-%patch10 -p1 -b .nss-3.18.0
+%patch10 -p1 -b .nss-3.19.1
 %patch11 -p1 -b .nspr-prbool
 
 # RPM specific patches
@@ -467,15 +467,6 @@ if [ $1 -eq 0 ] ; then
 fi
 update-desktop-database &> /dev/null || :
 
-%preun
-# is it a final removal?
-if [ $1 -eq 0 ]; then
-  %{__rm} -rf %{mozappdir}/components
-  %{__rm} -rf %{mozappdir}/extensions
-  %{__rm} -rf %{mozappdir}/langpacks
-  %{__rm} -rf %{mozappdir}/plugins
-fi
-
 %posttrans
 gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 
@@ -540,10 +531,13 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #---------------------------------------------------------------------
 
 %changelog
-* Tue Jun 23 2015 CentOS Sources <bugs@centos.org> - 38.0.1-1.el7.centos
-- CentOS default prefs
+* Thu Jun 25 2015 Jan Horak <jhorak@redhat.com> - 38.1.0-1
+- Update to 38.1.0 ESR
+
+* Thu May 21 2015 Jan Horak <jhorak@redhat.com> - 38.0.1-2
+- Fixed rhbz#1222807 by removing preun section
 
-* Fri May 15 2015 Martin Stransky <stransky@redhat.com> - 38.0-5
+* Fri May 15 2015 Martin Stransky <stransky@redhat.com> - 38.0.1-1
 - Update to 38.0.1 ESR
 
 * Thu May 14 2015 Martin Stransky <stransky@redhat.com> - 38.0-4