diff --git a/.gitignore b/.gitignore
index e2cf6c4..72d7671 100644
--- a/.gitignore
+++ b/.gitignore
@@ -138,3 +138,5 @@ SOURCES/nss-3.79.0-6.el8_1.src.rpm
 /firefox-langpacks-140.9.1esr-20260408.tar.xz
 /firefox-140.10.0esr.processed-source.tar.xz
 /firefox-langpacks-140.10.0esr-20260416.tar.xz
+/firefox-140.10.1esr.processed-source.tar.xz
+/firefox-langpacks-140.10.1esr-20260506.tar.xz
diff --git a/build-ffvpx-failures.patch b/build-ffvpx-failures.patch
new file mode 100644
index 0000000..54ccd7a
--- /dev/null
+++ b/build-ffvpx-failures.patch
@@ -0,0 +1,29 @@
+
+# HG changeset patch
+# User az <azebrowski@mozilla.com>
+# Date 1777295119 0
+# Node ID be2954efe4c16426fde496c22f4595687252aad2
+# Parent  fc073e8a30dbed81021ca06b7b6dd9b4a20a61bf
+Bug 2031958 - Fix Solaris/GCC -Wincompatible-pointer-types build error in ffvpx parser_list.c  a=dmeehan DONTBUILD
+
+Original Revision: https://phabricator.services.mozilla.com/D295104
+
+Differential Revision: https://phabricator.services.mozilla.com/D295303
+
+
+diff --git a/media/ffvpx/libavcodec/parser_list.c b/media/ffvpx/libavcodec/parser_list.c
+--- a/media/ffvpx/libavcodec/parser_list.c
++++ b/media/ffvpx/libavcodec/parser_list.c
+@@ -1,10 +1,10 @@
+ #include "config_components.h"
+ 
+-static const AVCodecParser * const parser_list[] = {
++static const FFCodecParser * const parser_list[] = {
+ #if CONFIG_VP8_PARSER
+     &ff_vp8_parser,
+ #endif
+ #if CONFIG_VP9_PARSER
+     &ff_vp9_parser,
+ #endif
+     NULL };
+
diff --git a/firefox.spec b/firefox.spec
index 1a93c60..37757c6 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -191,7 +191,7 @@ end}
 
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
-Version:        140.10.0
+Version:        140.10.1
 Release:        1%{?dist}
 URL:            https://www.mozilla.org/firefox/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
@@ -222,7 +222,7 @@ ExcludeArch:    aarch64 s390 ppc
 # Link to original tarball: https://archive.mozilla.org/pub/firefox/releases/%%{version}%%{?pre_version}/source/firefox-%%{version}%%{?pre_version}.source.tar.xz
 Source0:        firefox-%{version}%{?pre_version}%{?buildnum}.processed-source.tar.xz
 %if %{with langpacks}
-Source1:        firefox-langpacks-%{version}%{?pre_version}-20260416.tar.xz
+Source1:        firefox-langpacks-%{version}%{?pre_version}-20260506.tar.xz
 %endif
 Source2:        cbindgen-vendor.tar.xz
 Source3:        process-official-tarball
@@ -271,6 +271,7 @@ Patch11:        rhbz-71999-fips-youtube.patch
 Patch13:        firefox-fix-build-with-system-pipewire.patch
 Patch14:        build-system-nss.patch
 Patch15:        build-workaround-s390x.patch
+Patch16:        build-ffvpx-failures.patch
 
 # -- Upstreamed patches --
 Patch51:        mozilla-bmo1170092.patch
@@ -1330,6 +1331,7 @@ echo "--------------------------------------------"
 %ifarch s390x
 %patch -P15 -p1 -b .s390x_workaround
 %endif
+%patch -P16 -p1 -b .build-ffvpx-failure
 
 # We need to create the wasi.patch with the correct path to the wasm libclang_rt.
 %if %{with_wasi_sdk}
@@ -2137,6 +2139,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #---------------------------------------------------------------------
 
 %changelog
+* Wed May  6 2026 Jan Horak <jhorak@redhat.com> - 140.10.1-1
+- Update to 140.10.1 ESR
+
 * Thu Apr 16 2026 Jan Horak <jhorak@redhat.com> - 140.10.0-1
 - Update to 140.10.0 ESR
 
diff --git a/sources b/sources
index 6ad7615..7be25c8 100644
--- a/sources
+++ b/sources
@@ -4,5 +4,5 @@ SHA512 (cbindgen-vendor.tar.xz) = 2b8db32c0bca2fa27304ee4fd3a5cc38bc43a11500b238
 SHA512 (nss-3.112.0-1.el9_4.src.rpm) = 6386239e79f8095b05270b3c8b76ac9203b0df196921b64b779f832f0c04fc8c86624a98d85d39372b07e361278c400f52ef653e14ebeab9db49429e69153ff2
 SHA512 (nss-3.112.0-4.el8_2.src.rpm) = 59cca3df7a0ec6a731f4a36f8f560d496d240da0c16650f047ae686e683b883dc2630aedbe46a8b2cb21662c15f03f1efbe99da42055cc3a5418da4839e28da2
 SHA512 (nspr-4.36.0-2.el8_2.src.rpm) = fcc720afd2453a5110975fac9dd06f636491234780b62cbfcc235a485b4935e97c4f438292c686d27d9dc86b56f43399c024bee4fffcdff5f27c62d105310645
-SHA512 (firefox-140.10.0esr.processed-source.tar.xz) = 2b15e98528e74c575a7c244c5a740504dda50a89c4d613afea57bd942abfac9e9beeaf09b7b711432b19ad07d1676d8873c7ebaa1e0715ac91d755731b17a87a
-SHA512 (firefox-langpacks-140.10.0esr-20260416.tar.xz) = b89e3778af03b7c87096d6e9fa9b206acc6ee67529aeb416573d82c9de98903d93807f42b864a40ff4635d02530b246bfda386ee48d7202427232fb4e66fc086
+SHA512 (firefox-140.10.1esr.processed-source.tar.xz) = e2ffb8ce4ad88efe85fe46427f1ff508264244bd39c843f14d0692635c3d2efcda982bebeadb4b0672e53210a6fa2ec7c8b0e0ff12ad6d239c72ac0c8ed24665
+SHA512 (firefox-langpacks-140.10.1esr-20260506.tar.xz) = c9247203af187be300b90b3e00efe29769f768db6bf83669d6c4e3b240dc64827591911af5c4987de115c0beee354e6d292de567bea67d7112402376ef7a127b