diff --git a/.gitignore b/.gitignore
index 3a58fd3..ca90fe6 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-78.5.1.source.tar.xz
-SOURCES/thunderbird-langpacks-78.5.1-20201204.tar.xz
+SOURCES/thunderbird-78.6.0.source.tar.xz
+SOURCES/thunderbird-langpacks-78.6.0-20201215.tar.xz
 SOURCES/yasm-1.2.0-3.el5.src.rpm
diff --git a/.thunderbird.metadata b/.thunderbird.metadata
index 89e89ae..5ef8a53 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
-e8d69a4f656ef0607cc4c578d5d614b451081a1d SOURCES/thunderbird-78.5.1.source.tar.xz
-3ce0da68308dc4113817de270c3756195a1fe9df SOURCES/thunderbird-langpacks-78.5.1-20201204.tar.xz
+12bb1be74b705104e42afc84bbf1cbf0f21539a8 SOURCES/thunderbird-78.6.0.source.tar.xz
+b2946696fa04ae6f8f2f6c029755c6f39f6abf8d SOURCES/thunderbird-langpacks-78.6.0-20201215.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 57acf9b..8bb99ec 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:        78.5.1
+Version:        78.6.0
 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}-20201204.tar.xz
+Source1:        thunderbird-langpacks-%{version}%{?ext_version}-20201215.tar.xz
 # Locales for lightning
 %endif
 Source2:        cbindgen-vendor-0.14.3.tar.xz
@@ -1440,6 +1440,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #===============================================================================
 
 %changelog
+* Tue Dec 15 2020 Eike Rathke <erack@redhat.com> - 78.6.0-1
+- Update to 78.6.0
+
 * Fri Dec 04 2020 Jan Horak <jhorak@redhat.com> - 78.5.1-1
 - Update to 78.5.1 build1