diff --git a/.gitignore b/.gitignore
index effb112..c7a9afb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,3 +11,5 @@ SOURCES/nss-3.79.0-6.el8_1.src.rpm
 /firefox-102.9.0esr.b2.processed-source.tar.xz
 /firefox-langpacks-102.9.0esr-20230310.tar.xz
 /nss-3.79.0-11.el8_1.src.rpm
+/firefox-102.10.0esr.processed-source.tar.xz
+/firefox-langpacks-102.10.0esr-20230404.tar.xz
diff --git a/firefox.spec b/firefox.spec
index 23f46ae..69d4186 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -200,8 +200,8 @@ end}
 
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
-Version:        102.9.0
-Release:        4%{?dist}
+Version:        102.10.0
+Release:        1%{?dist}
 URL:            https://www.mozilla.org/firefox/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 
@@ -209,7 +209,7 @@ License:        MPLv1.1 or GPLv2+ or LGPLv2+
 # If set to .b2 or .b3 ... the processed source file needs to be renamed before upload, e.g.
 # firefox-102.8.0esr.b2.processed-source.tar.xz
 # When unset use processed source file name as is.
-%global buildnum .b2
+#%%global buildnum .b2
 
 %if 0%{?rhel} == 9
 ExcludeArch:    %{ix86}
@@ -231,7 +231,7 @@ 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}-20230310.tar.xz
+Source1:        firefox-langpacks-%{version}%{?pre_version}-20230404.tar.xz
 %endif
 Source2:        cbindgen-vendor.tar.xz
 Source3:        process-official-tarball
@@ -1451,6 +1451,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #---------------------------------------------------------------------
 
 %changelog
+* Tue Apr 04 2023 Eike Rathke <erack@redhat.com> - 102.10.0-1
+- Update to 102.10.0 build1
+
 * Fri Mar 10 2023 Eike Rathke <erack@redhat.com> - 102.9.0-4
 - Update to 102.9.0 build2
 
diff --git a/sources b/sources
index 4c7f59f..2eb834e 100644
--- a/sources
+++ b/sources
@@ -1,5 +1,5 @@
 SHA512 (cbindgen-vendor.tar.xz) = ba8967007c7545fcf62a392e745b19188d883428adb5e9abd102cc6ad5d50891e9d38a7a20ee7a91e99d6340e9490a6b8bcc4c7175f3bb3a698841b816966385
 SHA512 (nspr-4.34.0-3.el8_1.src.rpm) = fe4715694c297cd8cefa577946358a90103bde73e78a3fdf13d202a3791736e8a48fbece09ee3d15f6d81ae051e26d96400b03bb6bf8630715746c5e1a643543
-SHA512 (firefox-102.9.0esr.b2.processed-source.tar.xz) = d591cccb08972c68e8ae97a5507caf6025d91fb2f8f02274fdb1126946d49ae45784d3f22eab7794414272c68c1861e52d1a8768c643eeb6eaeb8add996d1a55
-SHA512 (firefox-langpacks-102.9.0esr-20230310.tar.xz) = ae2adaa5d4cc9c1958944078ed18cbb94fe72aa11a94be1a99a0132234d723246aef764f66e5d05c4b028fbf4a6827e6f82dcb5a9563dba8618d0e949fa29d7b
 SHA512 (nss-3.79.0-11.el8_1.src.rpm) = c4516e7917a45ac2d401700b6a7e23d5942d62fe2307cf130c526eea5a924516f82c2d2426b919c89004c4466c78061ea050721c1889a01fcd436cb562d4b1bd
+SHA512 (firefox-102.10.0esr.processed-source.tar.xz) = 508195a6ffefd74f53f0c15551475eed79380d16b754c61c1edc1abfac0d42f1c86cb5959635ccb1509a67ab151de6925488db7f5db714b9b5c8a926e1164817
+SHA512 (firefox-langpacks-102.10.0esr-20230404.tar.xz) = 3c47e5b0f55d88fc6937f86cbf4e98e2c37bfc627a1aa92e1af5bca2a54546b99abc998c0dc2eda75c5b50700f1217b3e448503f2c66a27400c29e9f193c72f6