diff --git a/.firefox.metadata b/.firefox.metadata
index 2a97de3..4a1ead1 100644
--- a/.firefox.metadata
+++ b/.firefox.metadata
@@ -1,5 +1,5 @@
c822547dbc12e2baebdfdfb38b665e23f0c2513a SOURCES/cbindgen-vendor.tar.xz
-d13ae0300c2295a2762eeeea2556ca847e55799c SOURCES/firefox-91.9.1esr.processed-source.tar.xz
-253fb25c2ea809ca7505c4b164723038f2a5e718 SOURCES/firefox-langpacks-91.9.1esr-20220520.tar.xz
+72b64cbe7b2aa6dbf64c1db0d122a57b06189e66 SOURCES/firefox-91.10.0esr.processed-source.tar.xz
+72ea5a3b4889eb3b12f37b14fad621f7b417c9fc SOURCES/firefox-langpacks-91.10.0esr-20220524.tar.xz
b5fd1332d8e0d37339ae170c7bebcb63a40b22e0 SOURCES/nspr-4.32.0-1.el8_1.src.rpm
8fff814901e03c2518ede2f8992d898f5ba61ed9 SOURCES/nss-3.67.0-7.el8_1.src.rpm
diff --git a/.gitignore b/.gitignore
index 5d36065..a39c447 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,5 @@
SOURCES/cbindgen-vendor.tar.xz
-SOURCES/firefox-91.9.1esr.processed-source.tar.xz
-SOURCES/firefox-langpacks-91.9.1esr-20220520.tar.xz
+SOURCES/firefox-91.10.0esr.processed-source.tar.xz
+SOURCES/firefox-langpacks-91.10.0esr-20220524.tar.xz
SOURCES/nspr-4.32.0-1.el8_1.src.rpm
SOURCES/nss-3.67.0-7.el8_1.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/SOURCES/mozilla-s390x-skia-gradient.patch b/SOURCES/mozilla-s390x-skia-gradient.patch
deleted file mode 100644
index 8c0e3bd..0000000
--- a/SOURCES/mozilla-s390x-skia-gradient.patch
+++ /dev/null
@@ -1,52 +0,0 @@
-# HG changeset patch
-# Parent acf59ea86dd1d878b43920832093f082dcfc61c0
-
-diff -r acf59ea86dd1 gfx/skia/skia/src/shaders/gradients/Sk4fLinearGradient.cpp
---- a/gfx/skia/skia/src/shaders/gradients/Sk4fLinearGradient.cpp Mon Mar 09 08:26:10 2020 +0100
-+++ b/gfx/skia/skia/src/shaders/gradients/Sk4fLinearGradient.cpp Fri Mar 27 13:30:28 2020 +0100
-@@ -7,7 +7,7 @@
-
- #include "include/core/SkPaint.h"
- #include "src/shaders/gradients/Sk4fLinearGradient.h"
--
-+#include "src/core/SkEndian.h"
- #include <cmath>
- #include <utility>
-
-@@ -28,6 +28,9 @@
-
- while (n >= 4) {
- DstTraits<premul>::store4x(c0, c1, c2, c3, dst, bias0, bias1);
-+#ifdef SK_CPU_BENDIAN
-+ SkEndianSwap32s(dst, 4);
-+#endif
- dst += 4;
-
- c0 = c0 + dc4;
-@@ -37,12 +40,23 @@
- n -= 4;
- }
- if (n & 2) {
-- DstTraits<premul>::store(c0, dst++, bias0);
-- DstTraits<premul>::store(c1, dst++, bias1);
-+ DstTraits<premul>::store(c0, dst, bias0);
-+#ifdef SK_CPU_BENDIAN
-+ *dst = SkEndianSwap32(*dst);
-+#endif
-+ ++dst;
-+ DstTraits<premul>::store(c1, dst, bias1);
-+#ifdef SK_CPU_BENDIAN
-+ *dst = SkEndianSwap32(*dst);
-+#endif
-+ ++dst;
- c0 = c0 + dc2;
- }
- if (n & 1) {
- DstTraits<premul>::store(c0, dst, bias0);
-+#ifdef SK_CPU_BENDIAN
-+ *dst = SkEndianSwap32(*dst);
-+#endif
- }
- }
-
-
diff --git a/SPECS/firefox.spec b/SPECS/firefox.spec
index 4e23659..a9c6256 100644
--- a/SPECS/firefox.spec
+++ b/SPECS/firefox.spec
@@ -135,7 +135,7 @@ end}
Summary: Mozilla Firefox Web browser
Name: firefox
-Version: 91.9.1
+Version: 91.10.0
Release: 1%{?dist}
URL: https://www.mozilla.org/firefox/
License: MPLv1.1 or GPLv2+ or LGPLv2+
@@ -160,7 +160,7 @@ 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}%{?buildnum}.processed-source.tar.xz
%if %{build_langpacks}
-Source1: firefox-langpacks-%{version}%{?pre_version}-20220520.tar.xz
+Source1: firefox-langpacks-%{version}%{?pre_version}-20220524.tar.xz
%endif
Source2: cbindgen-vendor.tar.xz
@@ -210,7 +210,7 @@ Patch510: mozilla-bmo1554971.patch
Patch511: mozilla-bmo1602730.patch
Patch512: mozilla-bmo849632.patch
Patch513: mozilla-bmo998749.patch
-Patch514: mozilla-s390x-skia-gradient.patch
+#Patch514: mozilla-s390x-skia-gradient.patch
Patch515: mozilla-bmo1626236.patch
Patch518: D110204-fscreen.diff
Patch519: expat-CVE-2022-25235.patch
@@ -1271,8 +1271,8 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
#---------------------------------------------------------------------
%changelog
-* Thu May 26 2022 CentOS Sources <bugs@centos.org> - 91.9.1-1.el9.centos
-- Apply debranding changes
+* Tue May 24 2022 Eike Rathke <erack@redhat.com> - 91.10.0-1
+- Update to 91.10.0 build1
* Fri May 20 2022 Jan Horak <jhorak@redhat.com> - 91.9.1-1
- Update to 91.9.1 build1