diff --git a/.firefox.metadata b/.firefox.metadata
index 8f267ce..7b0cc17 100644
--- a/.firefox.metadata
+++ b/.firefox.metadata
@@ -1,7 +1,7 @@
 18a8f30a0356c751b8d0ea6f76e764cab13ee046 SOURCES/Python-2.7.13.tar.xz
 a9effcc06cf80eaa22f12c1f7d6aa4266a1c4966 SOURCES/cbindgen-vendor-0.14.3.tar.xz
-8d5b4f10557cf7aec25edb2d3dd8b9282224ff53 SOURCES/firefox-78.11.0esr.source.tar.xz
-91a31ce33cb1fb2fdea96cbc14ddc82950bb388d SOURCES/firefox-langpacks-78.11.0esr-20210531.tar.xz
+83ae378d8bddd9efc5badb99a6246979313f7134 SOURCES/firefox-78.12.0esr.source.tar.xz
+a469453c2e84de2a22dccdb53ab8ca997cddd127 SOURCES/firefox-langpacks-78.12.0esr-20210707.tar.xz
 0de63f863b158454b9429234b52ed28a397ec45c SOURCES/gtk3-private-3.22.26-1.el6.src.rpm
 e188ab1a444697bc649e223c28389d82ca94c472 SOURCES/libffi-3.0.13-18.el7_3.src.rpm
 5715f987bc0024ce5d72993cb101b8268350033b SOURCES/nodejs-10.21.0-5.fc32.src.rpm
diff --git a/.gitignore b/.gitignore
index cc1b41e..23a60dc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,7 +1,7 @@
 SOURCES/Python-2.7.13.tar.xz
 SOURCES/cbindgen-vendor-0.14.3.tar.xz
-SOURCES/firefox-78.11.0esr.source.tar.xz
-SOURCES/firefox-langpacks-78.11.0esr-20210531.tar.xz
+SOURCES/firefox-78.12.0esr.source.tar.xz
+SOURCES/firefox-langpacks-78.12.0esr-20210707.tar.xz
 SOURCES/gtk3-private-3.22.26-1.el6.src.rpm
 SOURCES/libffi-3.0.13-18.el7_3.src.rpm
 SOURCES/nodejs-10.21.0-5.fc32.src.rpm
diff --git a/README.debrand b/README.debrand
deleted file mode 100644
index 01c46d2..0000000
--- a/README.debrand
+++ /dev/null
@@ -1,2 +0,0 @@
-Warning: This package was configured for automatic debranding, but the changes
-failed to apply.
diff --git a/SPECS/firefox.spec b/SPECS/firefox.spec
index a5c0454..8a58d52 100644
--- a/SPECS/firefox.spec
+++ b/SPECS/firefox.spec
@@ -6,34 +6,30 @@
 %global debug_package %{nil}
 %endif
 
-%global rhel_minor_version -1
-%if 0%{?flatpak:1}
-%global rhel_minor_version 4
-%endif
-%if "%{?dist}" == ".el8"
-%global rhel_minor_version 5
-%endif
-%if "%{?dist}" == ".el8_4"
-%global rhel_minor_version 4
-%endif
-%if "%{?dist}" == ".el8_3"
-%global rhel_minor_version 3
-%endif
-%if "%{?dist}" == ".el8_2"
-%global rhel_minor_version 2
-%endif
-%if "%{?dist}" == ".el8_1"
-%global rhel_minor_version 1
-%endif
-%if "%{?dist}" == ".el8_0"
-%global rhel_minor_version 0
-%endif
+%{lua:
+function dist_to_rhel_minor(str, start)
+  match = string.match(str, ".module%+el8.%d+")
+  if match then
+     return string.sub(match, 13)
+  end
+  match = string.match(str, ".el8_%d+")
+  if match then
+     return string.sub(match, 6)
+  end
+  match = string.match(str, ".el8")
+  if match then
+     return 5
+  end
+  return -1
+end}
+
+%global rhel_minor_version %{lua:print(dist_to_rhel_minor(rpm.expand("%dist")))}
 
 %global system_nss        1
 %global bundle_nss        0
 
 %if 0%{?rhel} == 8
-  %if 0%{?rhel_minor_version} < 2
+  %if %{rhel_minor_version} < 2
 %global bundle_nss        1
   %endif
 %endif
@@ -167,7 +163,7 @@
 %define use_bundled_yasm        0
 
 %if 0%{?rhel} == 8
-  %if 0%{?rhel_minor_version} <= 2
+  %if %{rhel_minor_version} <= 2
 %define use_bundled_nodejs      1
   %endif
 %endif
@@ -218,8 +214,8 @@
 
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
-Version:        78.11.0
-Release:        3%{?dist}
+Version:        78.12.0
+Release:        2%{?dist}
 URL:            https://www.mozilla.org/firefox/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 %if 0%{?rhel} == 7
@@ -231,7 +227,7 @@ ExclusiveArch:  i686 x86_64 ppc64 s390x
 
 Source0:        https://hg.mozilla.org/releases/mozilla-release/archive/firefox-%{version}%{?pre_version}.source.tar.xz
 %if %{build_langpacks}
-Source1:        firefox-langpacks-%{version}%{?pre_version}-20210531.tar.xz
+Source1:        firefox-langpacks-%{version}%{?pre_version}-20210707.tar.xz
 %endif
 Source2:        cbindgen-vendor-0.14.3.tar.xz
 Source10:       firefox-mozconfig
@@ -424,7 +420,7 @@ BuildRequires:  openssl-devel
 %endif
 
 %if 0%{?rhel} == 8
-  %if 0%{?rhel_minor_version} >= 3
+  %if %{rhel_minor_version} >= 3
 BuildRequires:  pkgconfig(libpipewire-0.3)
   %else
 BuildRequires:  pipewire-devel
@@ -606,7 +602,7 @@ https://extensions.gnome.org.
 %prep
 echo "Build environment"
 echo "dist                  %{?dist}"
-echo "RHEL 8 minor version: %{?rhel_minor_version}"
+echo "RHEL 8 minor version: %{rhel_minor_version}"
 echo "use_bundled_ffi       %{?use_bundled_ffi}"
 echo "use_bundled_python_2  %{?use_bundled_python_2}"
 echo "use_bundled_python_3  %{?use_bundled_python_3}"
@@ -652,7 +648,7 @@ sed -ie 's|/usr/include|/app/include|' %_sourcedir/firefox-pipewire-0-3.patch
 %endif
 
 %if 0%{?rhel} == 8
-  %if 0%{?rhel_minor_version} >= 3
+  %if %{rhel_minor_version} >= 3
 %patch235 -p1 -b .pipewire-0-3
   %else
 %patch231 -p1 -b .pipewire
@@ -1693,8 +1689,11 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #---------------------------------------------------------------------
 
 %changelog
-* Tue Jun 29 2021 CentOS Sources <bugs@centos.org> - 78.11.0-3.el8.centos
-- Apply debranding changes
+* Fri Jul 16 2021 Jan Horak <jhorak@redhat.com> - 78.12.0-2
+- Rebuild to pickup older nss
+
+* Wed Jul 07 2021 Eike Rathke <erack@redhat.com> - 78.12.0-1
+- Update to 78.12.0 build1
 
 * Mon May 31 2021 Eike Rathke <erack@redhat.com> - 78.11.0-3
 - Update to 78.11.0 build2 (release)