diff --git a/.gitignore b/.gitignore
index 00b8800..e9b2627 100644
--- a/.gitignore
+++ b/.gitignore
@@ -149,3 +149,5 @@
 /icecat-78.8.0-rh1.tar.bz2
 /icecat-78.9.0-langpacks.tar.gz
 /icecat-78.9.0-rh1.tar.bz2
+/icecat-78.10.0-langpacks.tar.gz
+/icecat-78.10.0-rh1.tar.bz2
diff --git a/icecat-lang_download.sh b/icecat-lang_download.sh
index 0352d7a..ac12c31 100755
--- a/icecat-lang_download.sh
+++ b/icecat-lang_download.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-VERSION=78.9.0
+VERSION=78.10.0
 URL=https://ftp.mozilla.org/pub/firefox/releases/${VERSION}esr/linux-x86_64/xpi/
 
 for u in $URL; do
diff --git a/icecat.spec b/icecat.spec
index 188c3de..64c93c5 100644
--- a/icecat.spec
+++ b/icecat.spec
@@ -20,14 +20,14 @@ ExcludeArch: ppc64le
 %global extra_ver %{nil}
 %endif
 
-%global pre_tag .test
-#%%global pre_tag %%{nil}
+#%%global pre_tag .test
+%global pre_tag %{nil}
 
 ####################
 
 ### Optimization ###
 # Builds for debugging
-%global debug_build   1
+%global debug_build   0
 
 # Downgrade optimization
 %global less_optbuild 0
@@ -74,14 +74,9 @@ ExcludeArch: ppc64le
 %endif
 
 # Use system libicu?
-%if 0%{?fedora} > 32
 %global system_libicu 1
-%else
-%global system_libicu 0
-%endif
 
 %global system_nss  1
-
 %if %{?system_nss}
 %global nspr_version 4.25.0
 %global nspr_build_version %{nspr_version}
@@ -112,8 +107,8 @@ ExcludeArch: ppc64le
 %global __requires_exclude_from ^%{icecatappdir}
 
 Name: icecat
-Version: 78.9.0
-Release: 3%{extra_ver}.%{redhat_ver}%{?pre_tag}%{?dist}
+Version: 78.10.0
+Release: 1%{extra_ver}.%{redhat_ver}%{?pre_tag}%{?dist}
 Summary: GNU version of Firefox browser
 
 # Tri-licensing scheme for Gnuzilla/IceCat in parentheses, and licenses for the extensions included
@@ -192,6 +187,7 @@ Patch403: mozilla-1640567.patch
 Patch412: mozilla-1337988.patch
 Patch414: Bug-1238661_fix-mozillaSignalTrampoline-to-work-.patch
 Patch422: mozilla-1580174-webrtc-popup.patch
+
 # Fix crash on ppc64le (mozilla#1512162)
 Patch423: mozilla-1512162.patch
 Patch424: %{name}-mozilla-1669471.patch
@@ -877,6 +873,9 @@ desktop-file-validate %{buildroot}%{_datadir}/applications/*.desktop
 %{_datadir}/applications/%{name}-wayland.desktop
 
 %changelog
+* Mon Apr 19 2021 Antonio Trande <sagitter@fedoraproject.org> - 78.10.0-1.rh1
+- Mozilla Release 78.10.0ESR
+
 * Fri Apr 09 2021 Antonio Trande <sagitter@fedoraproject.org> - 78.9.0-3.rh1
 - Patched for Mozilla bug #1613672
 - Use cbindgen 0.18.0
diff --git a/sources b/sources
index 61bed4d..6fc3cd7 100644
--- a/sources
+++ b/sources
@@ -1,5 +1,5 @@
 SHA512 (cbindgen-vendor.tar.xz) = 657a601d6b2a19488b5ea00f97ab04d461048f9954892bfdaf725943a3f26d492c77ddae3ce256b1c2cfd3bd3543c7b6f9ea8a4a89311fb5158afe4af6422369
-SHA512 (icecat-78.9.0-langpacks.tar.gz) = d8eab56257141bdcb9a653ff2058c69b1b84ae7b2a2ecdb3f7b53ac3cd4d15be77d8e2abb375a07fc166d71c850e9d0524eb07892d121c352f9c726997956ea0
-SHA512 (icecat-78.9.0-rh1.tar.bz2) = 278f6200a4fd73a45701e7ac0d5a159150858a9f1f6a165c8d5f789ea0825be9729f09e943fc5ce4b18a6f39ddf2c902e0d24606894ae9efab860e1853d66b73
+SHA512 (icecat-78.10.0-langpacks.tar.gz) = 7aaf75e84daaa27bafaebeb5e83c91a9fad4fa02268a1fd89eb08340e96a0866405f6ca2ca71952cebb944727fba830b2729f7918d2338dbbdc678232f2a1f70
+SHA512 (icecat-78.10.0-rh1.tar.bz2) = b2469af6a918e9867bf1e3a105542f71505b26244741ee998e647967a28f91932577277a9960ba22906acdffd27fec48f57fcc26a4b8fe5fb55b305445545f50
 SHA512 (icecat-COPYING-licensefiles.tar.gz) = ed541845170f1d209e322b0def3248d571e0c42c4a17c74e83197e743bd8a128a1475f5312d905c8e70d047eddeac17e604373892eb6d5f1720c5c361849c42c
 SHA512 (icecat.png) = a3cec16cb15a27c3c91b53e2c534e78b07911011ff1331e450c0baf8e13b76da7cea2a90e5d75191fa88cfbfd40a0a7f3e553e92b64d0043dadd5ad5edfdf81c