diff --git a/.firefox.metadata b/.firefox.metadata
index 166a39d..8f267ce 100644
--- a/.firefox.metadata
+++ b/.firefox.metadata
@@ -1,7 +1,7 @@
 18a8f30a0356c751b8d0ea6f76e764cab13ee046 SOURCES/Python-2.7.13.tar.xz
 a9effcc06cf80eaa22f12c1f7d6aa4266a1c4966 SOURCES/cbindgen-vendor-0.14.3.tar.xz
-547bac33732774993bd8223de9acfeedcc69a10d SOURCES/firefox-78.10.0esr.source.tar.xz
-839e2486057cef4926ea4c8de3b82bed045adca5 SOURCES/firefox-langpacks-78.10.0esr-20210420.tar.xz
+8d5b4f10557cf7aec25edb2d3dd8b9282224ff53 SOURCES/firefox-78.11.0esr.source.tar.xz
+91a31ce33cb1fb2fdea96cbc14ddc82950bb388d SOURCES/firefox-langpacks-78.11.0esr-20210531.tar.xz
 0de63f863b158454b9429234b52ed28a397ec45c SOURCES/gtk3-private-3.22.26-1.el6.src.rpm
 e188ab1a444697bc649e223c28389d82ca94c472 SOURCES/libffi-3.0.13-18.el7_3.src.rpm
 5715f987bc0024ce5d72993cb101b8268350033b SOURCES/nodejs-10.21.0-5.fc32.src.rpm
diff --git a/.gitignore b/.gitignore
index ff5d302..cc1b41e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,7 +1,7 @@
 SOURCES/Python-2.7.13.tar.xz
 SOURCES/cbindgen-vendor-0.14.3.tar.xz
-SOURCES/firefox-78.10.0esr.source.tar.xz
-SOURCES/firefox-langpacks-78.10.0esr-20210420.tar.xz
+SOURCES/firefox-78.11.0esr.source.tar.xz
+SOURCES/firefox-langpacks-78.11.0esr-20210531.tar.xz
 SOURCES/gtk3-private-3.22.26-1.el6.src.rpm
 SOURCES/libffi-3.0.13-18.el7_3.src.rpm
 SOURCES/nodejs-10.21.0-5.fc32.src.rpm
diff --git a/SOURCES/Bug-1238661---fix-mozillaSignalTrampoline-to-work-.patch b/SOURCES/Bug-1238661---fix-mozillaSignalTrampoline-to-work-.patch
deleted file mode 100644
index 6dfe2ad..0000000
--- a/SOURCES/Bug-1238661---fix-mozillaSignalTrampoline-to-work-.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-diff -up firefox-60.0/mfbt/LinuxSignal.h.mozilla-1238661 firefox-60.0/mfbt/LinuxSignal.h
---- firefox-60.0/mfbt/LinuxSignal.h.mozilla-1238661	2018-04-27 08:55:38.848241768 +0200
-+++ firefox-60.0/mfbt/LinuxSignal.h	2018-04-27 09:06:47.946769859 +0200
-@@ -22,7 +22,7 @@ __attribute__((naked)) void SignalTrampo
-                                              void* aContext) {
-   asm volatile("nop; nop; nop; nop" : : : "memory");
- 
--  asm volatile("b %0" : : "X"(H) : "memory");
-+  asm volatile("bx %0" : : "r"(H), "l"(aSignal), "l"(aInfo), "l"(aContext) : "memory");
- }
- 
- #  define MOZ_SIGNAL_TRAMPOLINE(h) (mozilla::SignalTrampoline<h>)
diff --git a/SOURCES/Bug-1526653---fix_user_vfp_armv7.patch b/SOURCES/Bug-1526653---fix_user_vfp_armv7.patch
deleted file mode 100644
index 3f84f95..0000000
--- a/SOURCES/Bug-1526653---fix_user_vfp_armv7.patch
+++ /dev/null
@@ -1,35 +0,0 @@
-From fd6847c9416f9eebde636e21d794d25d1be8791d Mon Sep 17 00:00:00 2001
-From: Mike Hommey <mh@glandium.org>
-Date: Sat, 1 Jun 2019 09:06:01 +0900
-Subject: [PATCH] Bug 1526653 - Include struct definitions for user_vfp and
- user_vfp_exc.
-
----
- js/src/wasm/WasmSignalHandlers.cpp | 11 ++++++++++-
- 1 file changed, 10 insertions(+), 1 deletion(-)
-
-diff --git a/js/src/wasm/WasmSignalHandlers.cpp b/js/src/wasm/WasmSignalHandlers.cpp
-index 636537f8478..383c380f04c 100644
---- a/js/src/wasm/WasmSignalHandlers.cpp
-+++ b/js/src/wasm/WasmSignalHandlers.cpp
-@@ -248,7 +248,16 @@ using mozilla::DebugOnly;
- #endif
- 
- #ifdef WASM_EMULATE_ARM_UNALIGNED_FP_ACCESS
--#  include <sys/user.h>
-+struct user_vfp {
-+  unsigned long long fpregs[32];
-+  unsigned long fpscr;
-+};
-+
-+struct user_vfp_exc {
-+  unsigned long fpexc;
-+  unsigned long fpinst;
-+  unsigned long fpinst2;
-+};
- #endif
- 
- #if defined(ANDROID)
--- 
-2.20.1
-
diff --git a/SOURCES/firefox-centos-default-prefs.js b/SOURCES/firefox-centos-default-prefs.js
deleted file mode 100644
index ea10021..0000000
--- a/SOURCES/firefox-centos-default-prefs.js
+++ /dev/null
@@ -1,35 +0,0 @@
-pref("app.update.auto",                     false);
-pref("app.update.enabled",                  false);
-pref("app.update.autoInstallEnabled",       false);
-pref("general.smoothScroll",                true);
-pref("intl.locale.matchOS",                 true);
-pref("toolkit.storage.synchronous",         0);
-pref("toolkit.networkmanager.disable",      false);
-pref("offline.autoDetect",                  true);
-pref("browser.backspace_action",            2);
-pref("browser.display.use_system_colors",   true);
-pref("browser.download.folderList",         1);
-pref("browser.link.open_external",          3);
-pref("browser.shell.checkDefaultBrowser",   false);
-pref("network.manage-offline-status",       true);
-pref("extensions.shownSelectionUI",         true);
-pref("ui.SpellCheckerUnderlineStyle",       1);
-pref("startup.homepage_override_url",       "http://www.centos.org");
-pref("startup.homepage_welcome_url",        "http://www.centos.org");
-pref("browser.startup.homepage",            "data:text/plain,browser.startup.homepage=file:///usr/share/doc/HTML/index.html");
-pref("geo.wifi.uri", "https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%");
-pref("media.gmp-gmpopenh264.provider.enabled",false);
-pref("media.gmp-gmpopenh264.autoupdate",false);
-pref("media.gmp-gmpopenh264.enabled",false);
-pref("media.gmp-gmpopenh264.enabled",false);
-pref("plugins.notifyMissingFlash", false);
-/* See https://bugzilla.redhat.com/show_bug.cgi?id=1226489 */
-pref("browser.display.use_system_colors", false);
-pref("layers.use-image-offscreen-surfaces", false);
-/* Allow sending credetials to all https:// sites */
-pref("network.negotiate-auth.trusted-uris", "https://");
-pref("security.use_sqldb", false);
-/* Use OS settings for UI language */
-pref("intl.locale.requested", "");
-/* See https://bugzilla.redhat.com/show_bug.cgi?id=1672424 */
-pref("storage.nfs_filesystem", true);
diff --git a/SPECS/firefox.spec b/SPECS/firefox.spec
index da08e73..1286116 100644
--- a/SPECS/firefox.spec
+++ b/SPECS/firefox.spec
@@ -11,6 +11,9 @@
 %global rhel_minor_version 4
 %endif
 %if "%{?dist}" == ".el8"
+%global rhel_minor_version 5
+%endif
+%if "%{?dist}" == ".el8_4"
 %global rhel_minor_version 4
 %endif
 %if "%{?dist}" == ".el8_3"
@@ -215,8 +218,8 @@
 
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
-Version:        78.10.0
-Release:        1%{?dist}
+Version:        78.11.0
+Release:        3%{?dist}
 URL:            https://www.mozilla.org/firefox/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 %if 0%{?rhel} == 7
@@ -228,7 +231,7 @@ ExclusiveArch:  i686 x86_64 ppc64 s390x
 
 Source0:        https://hg.mozilla.org/releases/mozilla-release/archive/firefox-%{version}%{?pre_version}.source.tar.xz
 %if %{build_langpacks}
-Source1:        firefox-langpacks-%{version}%{?pre_version}-20210420.tar.xz
+Source1:        firefox-langpacks-%{version}%{?pre_version}-20210531.tar.xz
 %endif
 Source2:        cbindgen-vendor-0.14.3.tar.xz
 Source10:       firefox-mozconfig
@@ -1690,8 +1693,14 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #---------------------------------------------------------------------
 
 %changelog
-* Mon Apr 26 2021 CentOS Sources <bugs@centos.org> - 78.10.0-1.el8.centos
-- Apply debranding changes
+* Mon May 31 2021 Eike Rathke <erack@redhat.com> - 78.11.0-3
+- Update to 78.11.0 build2 (release)
+
+* Thu May 27 2021 Eike Rathke <erack@redhat.com> - 78.11.0-2
+- Fix rhel_minor_version for dist .el8_4 and .el8
+
+* Tue May 25 2021 Eike Rathke <erack@redhat.com> - 78.11.0-1
+- Update to 78.11.0 build1
 
 * Tue Apr 20 2021 Eike Rathke <erack@redhat.com> - 78.10.0-1
 - Update to 78.10.0