diff --git a/.gitignore b/.gitignore
index 1fbdd5c..aef4ac1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,6 +6,6 @@ SOURCES/nodejs-10.21.0-5.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-78.4.3.source.tar.xz
-SOURCES/thunderbird-langpacks-78.4.3-20201112.tar.xz
+SOURCES/thunderbird-78.5.0.source.tar.xz
+SOURCES/thunderbird-langpacks-78.5.0-20201118.tar.xz
 SOURCES/yasm-1.2.0-3.el5.src.rpm
diff --git a/.thunderbird.metadata b/.thunderbird.metadata
index d3e1a82..def6eb2 100644
--- a/.thunderbird.metadata
+++ b/.thunderbird.metadata
@@ -6,6 +6,6 @@ e188ab1a444697bc649e223c28389d82ca94c472 SOURCES/libffi-3.0.13-18.el7_3.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
-601516e095b3e7d16ea4f98af77859211a104d9c SOURCES/thunderbird-78.4.3.source.tar.xz
-0e97605476f032c68bb63fb7f9977f9a35567275 SOURCES/thunderbird-langpacks-78.4.3-20201112.tar.xz
+68c33fb48109996bf725b1033a34ded972a5c535 SOURCES/thunderbird-78.5.0.source.tar.xz
+0a13b984edb26a197a8e3b2166a615bcebc523ba SOURCES/thunderbird-langpacks-78.5.0-20201118.tar.xz
 77fd30f7ebc12a629a31c1e252cec06af55a71fe SOURCES/yasm-1.2.0-3.el5.src.rpm
diff --git a/README.debrand b/README.debrand
deleted file mode 100644
index 01c46d2..0000000
--- a/README.debrand
+++ /dev/null
@@ -1,2 +0,0 @@
-Warning: This package was configured for automatic debranding, but the changes
-failed to apply.
diff --git a/SPECS/thunderbird.spec b/SPECS/thunderbird.spec
index aa2f672..cf9414a 100644
--- a/SPECS/thunderbird.spec
+++ b/SPECS/thunderbird.spec
@@ -191,7 +191,7 @@
 %global build_langpacks         1
 Summary:        Mozilla Thunderbird mail/newsgroup client
 Name:           thunderbird
-Version:        78.4.3
+Version:        78.5.0
 Release:        1%{?dist}
 URL:            http://www.mozilla.org/projects/thunderbird/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
@@ -207,7 +207,7 @@ 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}-20201112.tar.xz
+Source1:        thunderbird-langpacks-%{version}%{?ext_version}-20201118.tar.xz
 # Locales for lightning
 %endif
 Source2:        cbindgen-vendor-0.14.3.tar.xz
@@ -1438,6 +1438,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #===============================================================================
 
 %changelog
+* Wed Nov 18 2020 Eike Rathke <erack@redhat.com> - 78.5.0-1
+- Update to 78.5.0 build3
+
 * Thu Nov 12 2020 Eike Rathke <erack@redhat.com> - 78.4.3-1
 - Update to 78.4.3