diff --git a/.gitignore b/.gitignore
index 7bf41bf..a6dc8ff 100644
--- a/.gitignore
+++ b/.gitignore
@@ -302,3 +302,5 @@
 /firefox-91.11.0esr.processed-source.tar.xz
 /firefox-langpacks-91.11.0esr-20220621.tar.xz
 /firefox-langpacks-91.11.0esr-20220623.tar.xz
+/firefox-91.12.0esr.processed-source.tar.xz
+/firefox-langpacks-91.12.0esr-20220721.tar.xz
diff --git a/firefox.spec b/firefox.spec
index f93d400..b359a70 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -128,8 +128,8 @@ end}
 
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
-Version:        91.11.0
-Release:        2%{?dist}
+Version:        91.12.0
+Release:        1%{?dist}
 URL:            https://www.mozilla.org/firefox/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 %if 0%{?rhel} == 9
@@ -153,7 +153,7 @@ ExcludeArch:    aarch64 s390 ppc
 # Link to official tarball: https://hg.mozilla.org/releases/mozilla-release/archive/firefox-%%{version}%%{?pre_version}.source.tar.xz
 Source0:        firefox-%{version}%{?pre_version}.processed-source.tar.xz
 %if %{build_langpacks}
-Source1:        firefox-langpacks-%{version}%{?pre_version}-20220623.tar.xz
+Source1:        firefox-langpacks-%{version}%{?pre_version}-20220721.tar.xz
 
 %endif
 Source2:        cbindgen-vendor.tar.xz
@@ -1264,6 +1264,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #---------------------------------------------------------------------
 
 %changelog
+* Thu Jul 21 2022 Eike Rathke <erack@redhat.com> - 91.12.0-1
+- Update to 91.12.0 build1
+
 * Thu Jun 23 2022 Eike Rathke <erack@redhat.com> - 91.11.0-2
 - Update to 91.11.0 build2
 
diff --git a/sources b/sources
index e229031..e079b9f 100644
--- a/sources
+++ b/sources
@@ -1,5 +1,5 @@
 SHA512 (cbindgen-vendor.tar.xz) = 9cb4a590584c53386a14deb1f1faf7b67ff8f312eff4a8dccab710738183c504387d69fa660021b495ed61603f4df1db689f35234c61e2e886962e40aab20c95
 SHA512 (nss-3.67.0-7.el8_1.src.rpm) = 15361c596fc4f2e4afc7d40d48c37886cad93849821d2bcad8213f34035a6951be127b436b6799083f2b4adb18a68870dbe273177d2d670eda9cc9680e6d6f63
 SHA512 (nspr-4.32.0-1.el8_1.src.rpm) = c181a19bc24aeb62aed1745a6a43ae8aa2ee0d903aa16cb6ec7d385286e60f6426049cc9669459434377a215f329502ffe6fc48a1edc52d5b3283ebc259e9dca
-SHA512 (firefox-91.11.0esr.processed-source.tar.xz) = ee8b025f6c2e128e68acbe6dfb8e3e1fa578e54b1bee6b1ac3d942c2fb97b6ce6cdc2aca24c9172e5c48b479f238cc9837f82ee3752c4cb5cf7aff47df9c3b13
-SHA512 (firefox-langpacks-91.11.0esr-20220623.tar.xz) = 09a64ec8353877d56db8f16e48903a19dc937a6f0abda50a6ce09533b7bff0ba5fcfdaf3971597d371b792b032bb988aa0018e9a6786b2a67c7a753f243d98fc
+SHA512 (firefox-91.12.0esr.processed-source.tar.xz) = a38c35bd77fc0f0eda605ddbf738b41f4901c317c483d03b0e60f505c66ff86ff3bbfc78091bfa87c1664c96d8b159aff025c8863dc8e50df0ba296e27d40bfe
+SHA512 (firefox-langpacks-91.12.0esr-20220721.tar.xz) = 85afb6cb88287941703a51a30fb4d6d165e54f659c3cbe979f04e8dadc06b44cb81ed1ead355ba07b30e998258bae5d8e50b642c8bb764e1c9cb74eeda7b1803