diff --git a/.gitignore b/.gitignore
index f22940f..ebb6a59 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,12 +1,11 @@
 SOURCES/Python-2.7.13.tar.xz
 SOURCES/cbindgen-vendor-0.14.3.tar.xz
-SOURCES/cbindgen-vendor.tar.xz
 SOURCES/gtk3-private-3.22.26-1.el6.src.rpm
 SOURCES/libffi-3.0.13-18.el7_3.src.rpm
 SOURCES/nodejs-10.21.0-4.fc32.src.rpm
 SOURCES/nspr-4.25.0-1.el8_0.src.rpm
 SOURCES/nss-3.53.1-3.fc32.src.rpm
 SOURCES/openssl-1.0.2k-19.6.bundle.el7_7.src.rpm
-SOURCES/thunderbird-78.2.1.source.tar.xz
-SOURCES/thunderbird-langpacks-78.2.1-20200908.tar.xz
+SOURCES/thunderbird-78.3.0.source.tar.xz
+SOURCES/thunderbird-langpacks-78.3.0-20200919.tar.xz
 SOURCES/yasm-1.2.0-3.el5.src.rpm
diff --git a/.thunderbird.metadata b/.thunderbird.metadata
index baa22d6..929324d 100644
--- a/.thunderbird.metadata
+++ b/.thunderbird.metadata
@@ -1,12 +1,11 @@
 18a8f30a0356c751b8d0ea6f76e764cab13ee046 SOURCES/Python-2.7.13.tar.xz
 a9effcc06cf80eaa22f12c1f7d6aa4266a1c4966 SOURCES/cbindgen-vendor-0.14.3.tar.xz
-e86c38c48960b95353503b78e1de9ddca1ed34d7 SOURCES/cbindgen-vendor.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-10.21.0-4.fc32.src.rpm
 07d67c90367c3ec0d6cebc1a5793c21076d34b78 SOURCES/nspr-4.25.0-1.el8_0.src.rpm
 223c02166b1cb9863b9f453ef687d7805a93e7af SOURCES/nss-3.53.1-3.fc32.src.rpm
 a379070abf5000cde61411c97af7e733b267a4d3 SOURCES/openssl-1.0.2k-19.6.bundle.el7_7.src.rpm
-a08e673de7c008e4725b4157f25b44482e0be54e SOURCES/thunderbird-78.2.1.source.tar.xz
-8405170c497a835ecb0daa496cb064f6d3f7b4ad SOURCES/thunderbird-langpacks-78.2.1-20200908.tar.xz
+6f7d458199f44627b38a8b5f841f6f9b39c6303a SOURCES/thunderbird-78.3.0.source.tar.xz
+d9888ce2477f6a9ff10b0411bd4b372d01563a31 SOURCES/thunderbird-langpacks-78.3.0-20200919.tar.xz
 77fd30f7ebc12a629a31c1e252cec06af55a71fe SOURCES/yasm-1.2.0-3.el5.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/rhel6-abiv2-mozbz1642174.patch b/SOURCES/rhel6-abiv2-mozbz1642174.patch
new file mode 100644
index 0000000..57d217c
--- /dev/null
+++ b/SOURCES/rhel6-abiv2-mozbz1642174.patch
@@ -0,0 +1,29 @@
+diff -up firefox-78.2.0/security/nss/lib/freebl/freebl.gyp.rhel6-abiv2-mozbz1642174 firefox-78.2.0/security/nss/lib/freebl/freebl.gyp
+--- firefox-78.2.0/security/nss/lib/freebl/freebl.gyp.rhel6-abiv2-mozbz1642174	2020-09-12 08:29:08.527410514 +0200
++++ firefox-78.2.0/security/nss/lib/freebl/freebl.gyp	2020-09-12 08:42:26.279064334 +0200
+@@ -259,7 +259,7 @@
+       'type': 'static_library',
+       'sources': [
+         'gcm-ppc.c',
+-        'sha512-p8.s',
++        #'sha512-p8.s',
+       ],
+       'dependencies': [
+         '<(DEPTH)/exports.gyp:nss_exports'
+diff -up firefox-78.2.0/security/nss/lib/freebl/Makefile.rhel6-abiv2-mozbz1642174 firefox-78.2.0/security/nss/lib/freebl/Makefile
+--- firefox-78.2.0/security/nss/lib/freebl/Makefile.rhel6-abiv2-mozbz1642174	2020-08-17 20:34:06.000000000 +0200
++++ firefox-78.2.0/security/nss/lib/freebl/Makefile	2020-09-12 08:28:08.089142990 +0200
+@@ -267,9 +267,12 @@ ifeq ($(CPU_ARCH),arm)
+ endif
+ ifeq ($(CPU_ARCH),ppc)
+     EXTRA_SRCS += gcm-ppc.c
+-    ASFILES += sha512-p8.s
+ ifdef USE_64
+     DEFINES += -DNSS_NO_INIT_SUPPORT
++		#PPC_ABI := $(shell $(CC) -dM -E - < /dev/null | awk '$$2 == "_CALL_ELF" {print $$3}')
++   # ifeq ($(PPC_ABI),2)
++   #     ASFILES += sha512-p8.s
++   # endif		
+ endif # USE_64
+ endif # ppc
+ endif # Linux
diff --git a/SOURCES/rhel6-auxvh.patch b/SOURCES/rhel6-auxvh.patch
new file mode 100644
index 0000000..3234196
--- /dev/null
+++ b/SOURCES/rhel6-auxvh.patch
@@ -0,0 +1,39 @@
+diff -up firefox-78.2.0/mozglue/build/ppc.cpp.ppc-vsx firefox-78.2.0/mozglue/build/ppc.cpp
+--- firefox-78.2.0/mozglue/build/ppc.cpp.ppc-vsx	2020-09-11 07:07:05.850864720 +0200
++++ firefox-78.2.0/mozglue/build/ppc.cpp	2020-09-11 07:08:48.884202679 +0200
+@@ -14,10 +14,6 @@
+ #if defined(XP_LINUX)
+ // Use the getauxval() function if available.
+ // ARCH_3_00 wasn't defined until glibc 2.23, so include just in case.
+-#  include <sys/auxv.h>
+-#  ifndef PPC_FEATURE2_ARCH_3_00
+-#    define PPC_FEATURE2_ARCH_3_00 0x00800000
+-#  endif
+ #endif
+ 
+ const unsigned PPC_FLAG_VMX = 1;
+@@ -33,24 +29,8 @@ static signed get_ppc_cpu_flags(void) {
+   }
+   cpu_flags = 0;
+ 
+-#if defined(XP_LINUX)
+-  // Try getauxval().
+-  unsigned long int cap = getauxval(AT_HWCAP);
+-  unsigned long int cap2 = getauxval(AT_HWCAP2);
+-
+-  if (cap & PPC_FEATURE_HAS_ALTIVEC) {
+-    cpu_flags |= PPC_FLAG_VMX;
+-  }
+-  if (cap & PPC_FEATURE_HAS_VSX) {
+-    cpu_flags |= PPC_FLAG_VSX;
+-  }
+-  if (cap2 & PPC_FEATURE2_ARCH_3_00) {
+-    cpu_flags |= PPC_FLAG_VSX3;
+-  }
+-#else
+   // Non-Linux detection here. Currently, on systems other than Linux,
+   // no CPU SIMD features will be detected.
+-#endif
+ 
+   return cpu_flags;
+ }
diff --git a/SOURCES/rhel6-dbusver.patch b/SOURCES/rhel6-dbusver.patch
new file mode 100644
index 0000000..d07224b
--- /dev/null
+++ b/SOURCES/rhel6-dbusver.patch
@@ -0,0 +1,41 @@
+diff -up firefox-78.2.0/third_party/rust/libdbus-sys/build.rs.rhel6-dbusver firefox-78.2.0/third_party/rust/libdbus-sys/build.rs
+--- firefox-78.2.0/third_party/rust/libdbus-sys/build.rs.rhel6-dbusver	2020-08-17 20:34:46.000000000 +0200
++++ firefox-78.2.0/third_party/rust/libdbus-sys/build.rs	2020-09-09 21:06:34.932374254 +0200
+@@ -3,5 +3,5 @@ extern crate pkg_config;
+ fn main() {
+     // See https://github.com/joshtriplett/metadeps/issues/9 for why we don't use
+     // metadeps here, but instead keep this manually in sync with Cargo.toml.
+-    pkg_config::Config::new().atleast_version("1.6").probe("dbus-1").unwrap();
++    pkg_config::Config::new().atleast_version("1.2").probe("dbus-1").unwrap();
+ }
+diff -up firefox-78.2.0/third_party/rust/libdbus-sys/.cargo-checksum.json.rhel6-dbusver firefox-78.2.0/third_party/rust/libdbus-sys/.cargo-checksum.json
+--- firefox-78.2.0/third_party/rust/libdbus-sys/.cargo-checksum.json.rhel6-dbusver	2020-08-17 20:35:05.000000000 +0200
++++ firefox-78.2.0/third_party/rust/libdbus-sys/.cargo-checksum.json	2020-09-09 21:11:37.045287830 +0200
+@@ -1 +1 @@
+-{"files":{"Cargo.toml":"7054b852a13a318562f3ef791e69802f234c9f3d943f2de2d1cef8b31fd0939a","LICENSE-APACHE":"453745410e3be8cf25d56872ea2aec975a78e6c9f217443d0bf908a5bce7c8ff","LICENSE-MIT":"de3911c2d98c8bd2d701ee721347053d9b55995a11f9a8c955e44d3ca1b376bf","build.rs":"9fbc218277d76a570c01c5795a7c8008f5458317cc036d7c88b1dc1a4af22fb7","src/lib.rs":"c8a0d43a3b7e9c8828d4946437379f1985492bd6b04fdd5e967bbcace2197c3d"},"package":"18cb88963258d00f4962205dbb5933d82780d9962c8c8a064b651d2ad7189210"}
+\ No newline at end of file
++{"files":{"Cargo.toml":"7054b852a13a318562f3ef791e69802f234c9f3d943f2de2d1cef8b31fd0939a","LICENSE-APACHE":"453745410e3be8cf25d56872ea2aec975a78e6c9f217443d0bf908a5bce7c8ff","LICENSE-MIT":"de3911c2d98c8bd2d701ee721347053d9b55995a11f9a8c955e44d3ca1b376bf","build.rs":"41d24ea34bd37eb7a47253ac0681da2dde73e52caf04bbcecf795965e5d36466","src/lib.rs":"31e939a4a7f537265a84c91ba940ac31ac0f66c53a49971f1b21bbd2e4a7b5e9"},"package":"18cb88963258d00f4962205dbb5933d82780d9962c8c8a064b651d2ad7189210"}
+diff -up firefox-78.2.0/third_party/rust/libdbus-sys/src/lib.rs.rhel6-dbusver firefox-78.2.0/third_party/rust/libdbus-sys/src/lib.rs
+--- firefox-78.2.0/third_party/rust/libdbus-sys/src/lib.rs.rhel6-dbusver	2020-08-17 20:34:38.000000000 +0200
++++ firefox-78.2.0/third_party/rust/libdbus-sys/src/lib.rs	2020-09-09 21:06:34.933374260 +0200
+@@ -252,13 +252,14 @@ extern "C" {
+     pub fn dbus_signature_validate_single(signature: *const c_char, error: *mut DBusError) -> u32;
+ 
+     pub fn dbus_threads_init_default() -> c_int;
++}
++    pub fn dbus_validate_bus_name(busname: *const c_char, error: *mut DBusError) -> u32 {return 1;}
++    pub fn dbus_validate_error_name(errorname: *const c_char, error: *mut DBusError) -> u32 {return 1;}
++    pub fn dbus_validate_interface(interface: *const c_char, error: *mut DBusError) -> u32 {return 1;}
++    pub fn dbus_validate_member(member: *const c_char, error: *mut DBusError) -> u32 {return 1;}
++    pub fn dbus_validate_path(path: *const c_char, error: *mut DBusError) -> u32 {return 1;}
+ 
+-    pub fn dbus_validate_bus_name(busname: *const c_char, error: *mut DBusError) -> u32;
+-    pub fn dbus_validate_error_name(errorname: *const c_char, error: *mut DBusError) -> u32;
+-    pub fn dbus_validate_interface(interface: *const c_char, error: *mut DBusError) -> u32;
+-    pub fn dbus_validate_member(member: *const c_char, error: *mut DBusError) -> u32;
+-    pub fn dbus_validate_path(path: *const c_char, error: *mut DBusError) -> u32;
+-
++extern "C" {
+     pub fn dbus_watch_get_enabled(watch: *mut DBusWatch) -> u32;
+     pub fn dbus_watch_get_flags(watch: *mut DBusWatch) -> c_uint;
+     pub fn dbus_watch_get_unix_fd(watch: *mut DBusWatch) -> c_int;
diff --git a/SOURCES/rhel6-kernel.patch b/SOURCES/rhel6-kernel.patch
new file mode 100644
index 0000000..4981285
--- /dev/null
+++ b/SOURCES/rhel6-kernel.patch
@@ -0,0 +1,16 @@
+diff -up firefox-78.2.0/media/webrtc/trunk/webrtc/modules/video_capture/linux/device_info_linux.cc.rhel6-kernel firefox-78.2.0/media/webrtc/trunk/webrtc/modules/video_capture/linux/device_info_linux.cc
+--- firefox-78.2.0/media/webrtc/trunk/webrtc/modules/video_capture/linux/device_info_linux.cc.rhel6-kernel	2020-09-09 19:56:13.159597467 +0200
++++ firefox-78.2.0/media/webrtc/trunk/webrtc/modules/video_capture/linux/device_info_linux.cc	2020-09-09 19:56:31.457712629 +0200
+@@ -385,11 +385,7 @@ bool DeviceInfoLinux::IsDeviceNameMatche
+ 
+ bool DeviceInfoLinux::IsVideoCaptureDevice(struct v4l2_capability* cap)
+ {
+-  if (cap->capabilities & V4L2_CAP_DEVICE_CAPS) {
+-    return cap->device_caps & V4L2_CAP_VIDEO_CAPTURE;
+-  } else {
+-    return cap->capabilities & V4L2_CAP_VIDEO_CAPTURE;
+-  }
++  return false;
+ }
+ 
+ int32_t DeviceInfoLinux::FillCapabilities(int fd) {
diff --git a/SOURCES/rhel6-mach-fail.patch b/SOURCES/rhel6-mach-fail.patch
new file mode 100644
index 0000000..286be5e
--- /dev/null
+++ b/SOURCES/rhel6-mach-fail.patch
@@ -0,0 +1,12 @@
+diff -up firefox-78.2.0/python/mozbuild/mozbuild/controller/building.py.mach-fail firefox-78.2.0/python/mozbuild/mozbuild/controller/building.py
+--- firefox-78.2.0/python/mozbuild/mozbuild/controller/building.py.mach-fail	2020-09-09 19:25:18.552930506 +0200
++++ firefox-78.2.0/python/mozbuild/mozbuild/controller/building.py	2020-09-09 19:25:31.081010223 +0200
+@@ -591,7 +591,7 @@ class TerminalLoggingHandler(logging.Han
+             if self.footer:
+                 self.footer.clear()
+ 
+-            self.fh.write(msg.encode("utf-8"))
++            self.fh.write(msg)
+             self.fh.write('\n')
+ 
+             if self.footer:
diff --git a/SOURCES/rhel6-zconst.patch b/SOURCES/rhel6-zconst.patch
new file mode 100644
index 0000000..fedd335
--- /dev/null
+++ b/SOURCES/rhel6-zconst.patch
@@ -0,0 +1,12 @@
+diff -up firefox-78.2.0/tools/profiler/gecko/nsProfiler.cpp.zconst firefox-78.2.0/tools/profiler/gecko/nsProfiler.cpp
+--- firefox-78.2.0/tools/profiler/gecko/nsProfiler.cpp.zconst	2020-09-09 20:29:17.489123431 +0200
++++ firefox-78.2.0/tools/profiler/gecko/nsProfiler.cpp	2020-09-09 20:30:09.544457350 +0200
+@@ -523,7 +523,7 @@ nsProfiler::GetProfileDataAsGzippedArray
+             stream.opaque = nullptr;
+             stream.next_out = (Bytef*)outBuff.Elements();
+             stream.avail_out = outBuff.Length();
+-            stream.next_in = (z_const Bytef*)aResult.Data();
++            stream.next_in = (Bytef*)aResult.Data();
+             stream.avail_in = aResult.Length();
+ 
+             // A windowBits of 31 is the default (15) plus 16 for emitting a
diff --git a/SOURCES/thunderbird-centos-default-prefs.js.el6 b/SOURCES/thunderbird-centos-default-prefs.js.el6
deleted file mode 100644
index 75de82e..0000000
--- a/SOURCES/thunderbird-centos-default-prefs.js.el6
+++ /dev/null
@@ -1,30 +0,0 @@
-pref("app.update.enabled", false);
-pref("app.update.autoInstallEnabled", false);
-# Allow users to set custom colors
-# pref("browser.display.use_system_colors",   true);
-pref("general.useragent.vendor", "CentOS");
-pref("general.useragent.vendorSub", "THUNDERBIRD_RPM_VR");
-pref("intl.locale.matchOS", true);
-pref("mail.shell.checkDefaultClient", false);
-pref("toolkit.networkmanager.disable", false);
-pref("offline.autoDetect", true);
-
-# Disable global indexing by default
-pref("mailnews.database.global.indexer.enabled", false);
-
-# Do not switch to Smart Folders after upgrade to 3.0b4
-pref("mail.folder.views.version", "1");
-pref("extensions.shownSelectionUI", true);
-pref("extensions.autoDisableScope", 0);
-
-# For rhbz#1024232
-pref("ui.SpellCheckerUnderlineStyle",       1);
-
-/* Workaround for rhbz#1134876 */
-pref("javascript.options.baselinejit",      false);
-/* Workaround for rhbz#1110291 */
-pref("network.negotiate-auth.allow-insecure-ntlm-v1", true);
-/* Workaround for mozbz#1063315 */
-pref("security.use_mozillapkix_verification", false);
-/* Use OS settings for UI language */
-pref("intl.locale.requested", "");
diff --git a/SOURCES/thunderbird-centos-default-prefs.js.el7 b/SOURCES/thunderbird-centos-default-prefs.js.el7
deleted file mode 100644
index 75de82e..0000000
--- a/SOURCES/thunderbird-centos-default-prefs.js.el7
+++ /dev/null
@@ -1,30 +0,0 @@
-pref("app.update.enabled", false);
-pref("app.update.autoInstallEnabled", false);
-# Allow users to set custom colors
-# pref("browser.display.use_system_colors",   true);
-pref("general.useragent.vendor", "CentOS");
-pref("general.useragent.vendorSub", "THUNDERBIRD_RPM_VR");
-pref("intl.locale.matchOS", true);
-pref("mail.shell.checkDefaultClient", false);
-pref("toolkit.networkmanager.disable", false);
-pref("offline.autoDetect", true);
-
-# Disable global indexing by default
-pref("mailnews.database.global.indexer.enabled", false);
-
-# Do not switch to Smart Folders after upgrade to 3.0b4
-pref("mail.folder.views.version", "1");
-pref("extensions.shownSelectionUI", true);
-pref("extensions.autoDisableScope", 0);
-
-# For rhbz#1024232
-pref("ui.SpellCheckerUnderlineStyle",       1);
-
-/* Workaround for rhbz#1134876 */
-pref("javascript.options.baselinejit",      false);
-/* Workaround for rhbz#1110291 */
-pref("network.negotiate-auth.allow-insecure-ntlm-v1", true);
-/* Workaround for mozbz#1063315 */
-pref("security.use_mozillapkix_verification", false);
-/* Use OS settings for UI language */
-pref("intl.locale.requested", "");
diff --git a/SOURCES/thunderbird-mozconfig b/SOURCES/thunderbird-mozconfig
index 27091df..77b397a 100644
--- a/SOURCES/thunderbird-mozconfig
+++ b/SOURCES/thunderbird-mozconfig
@@ -19,6 +19,7 @@ ac_add_options --with-google-location-service-api-keyfile=../google-api-key
 ac_add_options --with-google-safebrowsing-api-keyfile=../google-api-key
 ac_add_options --disable-av1
 ac_add_options --disable-crashreporter
+ac_add_options --disable-openpgp
 
 export BUILD_OFFICIAL=1
 export MOZILLA_OFFICIAL=1
diff --git a/SOURCES/thunderbird-redhat-default-prefs.js.rhel6 b/SOURCES/thunderbird-redhat-default-prefs.js.rhel6
new file mode 100644
index 0000000..c412cb5
--- /dev/null
+++ b/SOURCES/thunderbird-redhat-default-prefs.js.rhel6
@@ -0,0 +1,30 @@
+pref("app.update.enabled", false);
+pref("app.update.autoInstallEnabled", false);
+# Allow users to set custom colors
+# pref("browser.display.use_system_colors",   true);
+pref("general.useragent.vendor", "Red Hat");
+pref("general.useragent.vendorSub", "THUNDERBIRD_RPM_VR");
+pref("intl.locale.matchOS", true);
+pref("mail.shell.checkDefaultClient", false);
+pref("toolkit.networkmanager.disable", false);
+pref("offline.autoDetect", true);
+
+# Disable global indexing by default
+pref("mailnews.database.global.indexer.enabled", false);
+
+# Do not switch to Smart Folders after upgrade to 3.0b4
+pref("mail.folder.views.version", "1");
+pref("extensions.shownSelectionUI", true);
+pref("extensions.autoDisableScope", 0);
+
+# For rhbz#1024232
+pref("ui.SpellCheckerUnderlineStyle",       1);
+
+/* Workaround for rhbz#1134876 */
+pref("javascript.options.baselinejit",      false);
+/* Workaround for rhbz#1110291 */
+pref("network.negotiate-auth.allow-insecure-ntlm-v1", true);
+/* Workaround for mozbz#1063315 */
+pref("security.use_mozillapkix_verification", false);
+/* Use OS settings for UI language */
+pref("intl.locale.requested", "");
diff --git a/SOURCES/thunderbird-redhat-default-prefs.js.rhel7 b/SOURCES/thunderbird-redhat-default-prefs.js.rhel7
new file mode 100644
index 0000000..c412cb5
--- /dev/null
+++ b/SOURCES/thunderbird-redhat-default-prefs.js.rhel7
@@ -0,0 +1,30 @@
+pref("app.update.enabled", false);
+pref("app.update.autoInstallEnabled", false);
+# Allow users to set custom colors
+# pref("browser.display.use_system_colors",   true);
+pref("general.useragent.vendor", "Red Hat");
+pref("general.useragent.vendorSub", "THUNDERBIRD_RPM_VR");
+pref("intl.locale.matchOS", true);
+pref("mail.shell.checkDefaultClient", false);
+pref("toolkit.networkmanager.disable", false);
+pref("offline.autoDetect", true);
+
+# Disable global indexing by default
+pref("mailnews.database.global.indexer.enabled", false);
+
+# Do not switch to Smart Folders after upgrade to 3.0b4
+pref("mail.folder.views.version", "1");
+pref("extensions.shownSelectionUI", true);
+pref("extensions.autoDisableScope", 0);
+
+# For rhbz#1024232
+pref("ui.SpellCheckerUnderlineStyle",       1);
+
+/* Workaround for rhbz#1134876 */
+pref("javascript.options.baselinejit",      false);
+/* Workaround for rhbz#1110291 */
+pref("network.negotiate-auth.allow-insecure-ntlm-v1", true);
+/* Workaround for mozbz#1063315 */
+pref("security.use_mozillapkix_verification", false);
+/* Use OS settings for UI language */
+pref("intl.locale.requested", "");
diff --git a/SPECS/thunderbird.spec b/SPECS/thunderbird.spec
index 57c9ad0..02be7ab 100644
--- a/SPECS/thunderbird.spec
+++ b/SPECS/thunderbird.spec
@@ -1,7 +1,3 @@
-%ifarch %{arm}
-%undefine _debugsource_packages
-%endif
-
 # Set for local builds only
 %global disable_toolsets  0
 
@@ -208,7 +204,7 @@
 %global build_langpacks         1
 Summary:        Mozilla Thunderbird mail/newsgroup client
 Name:           thunderbird
-Version:        78.2.1
+Version:        78.3.0
 Release:        1%{?dist}
 URL:            http://www.mozilla.org/projects/thunderbird/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
@@ -224,12 +220,11 @@ ExclusiveArch:  i686 x86_64 ppc64 s390x
 # From ftp://archive.mozilla.org/pub/thunderbird/releases/%{version}%{?ext_version}/source
 Source0:        https://archive.mozilla.org/pub/thunderbird/releases/%{version}%{?pre_version}/source/thunderbird-%{version}%{?pre_version}.source.tar.xz
 %if %{build_langpacks}
-Source1:        thunderbird-langpacks-%{version}%{?ext_version}-20200908.tar.xz
+Source1:        thunderbird-langpacks-%{version}%{?ext_version}-20200919.tar.xz
 # Locales for lightning
 %endif
 Source2:        cbindgen-vendor-0.14.3.tar.xz
 Source3:        get-calendar-langpacks.sh
-Source4:        cbindgen-vendor.tar.xz
 
 Source10:       thunderbird-mozconfig
 Source20:       thunderbird.desktop
@@ -249,8 +244,8 @@ Source301:      yasm-1.2.0-3.el5.src.rpm
 Source303:      libffi-3.0.13-18.el7_3.src.rpm
 Source304:      nodejs-10.21.0-4.fc32.src.rpm
 Source305:      openssl-1.0.2k-19.6.bundle.el7_7.src.rpm
-Source601:      thunderbird-centos-default-prefs.js.el6
-Source701:      thunderbird-centos-default-prefs.js.el7
+Source601:      thunderbird-redhat-default-prefs.js.rhel6
+Source701:      thunderbird-redhat-default-prefs.js.rhel7
 
 ## Firefox patches
 
@@ -312,6 +307,14 @@ Patch10000:      Bug-1238661---fix-mozillaSignalTrampoline-to-work-.patch
 Patch10001:      Bug-1526653---fix_user_vfp_armv7.patch
 %endif
 
+# RHEL6 patches
+Patch600:        rhel6-dbusver.patch
+Patch601:        rhel6-kernel.patch
+Patch602:        rhel6-mach-fail.patch
+Patch603:        rhel6-zconst.patch
+Patch604:        rhel6-auxvh.patch
+Patch605:        rhel6-abiv2-mozbz1642174.patch
+
 %if %{?system_nss}
 %if !0%{?bundle_nss}
 BuildRequires:  pkgconfig(nspr) >= %{nspr_version}
@@ -607,6 +610,15 @@ echo "use_bundled_yasm      %{?use_bundled_yasm}"
 %patch1001 -p1 -b .ppc64le-inline
 %patch1004 -p1 -b .icu-make
 
+%if 0%{?rhel} == 6
+%patch600 -p1 -b .rhel6-dbusver
+%patch601 -p1 -b .rhel6-kernel
+%patch602 -p1 -b .rhel6-mach-fail
+%patch603 -p1 -b .rhel6-zconst
+%patch604 -p1 -b .rhel6-auxvh
+%patch605 -p1 -b .rhel6-abiv2-mozbz1642174
+%endif
+
 # CentOS patches
 %if 0%{?centos}
 %patch10000 -p1 -b .mozilla-1238661
@@ -663,7 +675,7 @@ echo "ac_add_options --enable-system-hunspell" >> .mozconfig
 %endif
 %ifarch armv7hl
 # ARMv7 need that (rhbz#1426850)
-%global optimize_flags "-g0 -O2 -fno-schedule-insns -fno-lto"
+%global optimize_flags "-g -O2 -fno-schedule-insns"
 %endif
 %ifarch ppc64le aarch64
 %global optimize_flags "-g -O2"
@@ -906,7 +918,7 @@ function build_bundled_package() {
 # If needed build the bundled python 2.7 and 3.6 and put it in the PATH
 %if 0%{?use_bundled_python_3}
     pushd %{_builddir}/python3/Python-%{bundled_python_version_3}
-    ./configure --prefix="%{_buildrootdir}" --exec-prefix="%{_buildrootdir}" --libdir="%{_buildrootdir}/lib" --with-pydebug
+    ./configure --prefix="%{_buildrootdir}" --exec-prefix="%{_buildrootdir}" --libdir="%{_buildrootdir}/lib"
     make %{?_smp_mflags} install V=1 -j1
     cp Tools/scripts/pathfix.py %{_buildrootdir}/bin
     popd
@@ -1054,10 +1066,6 @@ MOZ_OPT_FLAGS=$(echo "$MOZ_OPT_FLAGS" | %{__sed} -e 's/-g/-g1/')
 # (OOM when linking, rhbz#1238225)
 export MOZ_DEBUG_FLAGS=" "
 %endif
-%ifarch %{arm}
-MOZ_OPT_FLAGS=$(echo "$MOZ_OPT_FLAGS" | %{__sed} -e 's/-g/-g0/')
-export MOZ_DEBUG_FLAGS=" "
-%endif
 
 # We don't wantfirefox to use CK_GCM_PARAMS_V3 in nss
 MOZ_OPT_FLAGS="$MOZ_OPT_FLAGS -DNSS_PKCS11_3_0_STRICT"
@@ -1136,6 +1144,11 @@ env
 ls %{_buildrootdir}
 
 
+%if 0%{?rhel} == 6
+export POLICY_FILE="rhel6.config"
+export POLICT_PATH="/etc/pki/nss-legacy"
+%endif
+
 %if 0%{?use_llvmts}
 scl enable llvm-toolset-%{llvm_version} './mach build -v'
 %else
@@ -1421,6 +1434,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #===============================================================================
 
 %changelog
+* Sat Sep 19 2020 Jan Horak <jhorak@redhat.com> - 78.3.0-1
+- Update to 78.3.0 build1
+
 * Tue Sep 08 2020 Jan Horak <jhorak@redhat.com> - 78.2.1-1
 - Update to 78.2.1 build1