diff --git a/.gitignore b/.gitignore
index 6f4a403..2056590 100644
--- a/.gitignore
+++ b/.gitignore
@@ -185,3 +185,6 @@ thunderbird-langpacks-3.1.2-20100803.tar.bz2
 /thunderbird-52.3.0.source.tar.xz
 /thunderbird-langpacks-52.3.0-20170821.tar.xz
 /l10n-lightning-52.3.0.tar.xz
+/thunderbird-52.4.0.source.tar.xz
+/thunderbird-langpacks-52.4.0-20171003.tar.xz
+/l10n-lightning-52.4.0.tar.xz
diff --git a/build-toml-fix.patch b/build-toml-fix.patch
deleted file mode 100644
index d853a6a..0000000
--- a/build-toml-fix.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-diff -up thunderbird-52.3.0/mozilla/media/libstagefright/binding/mp4parse_capi/Cargo.toml.toml-fix thunderbird-52.3.0/mozilla/media/libstagefright/binding/mp4parse_capi/Cargo.toml
---- thunderbird-52.3.0/mozilla/media/libstagefright/binding/mp4parse_capi/Cargo.toml.toml-fix	2017-08-21 10:51:01.408785691 +0200
-+++ thunderbird-52.3.0/mozilla/media/libstagefright/binding/mp4parse_capi/Cargo.toml	2017-08-21 10:51:05.904787854 +0200
-@@ -20,8 +20,6 @@ exclude = [
- 
- build = false
- 
--build = false
--
- [dependencies]
- "mp4parse" = {version = "0.6.0", path = "../mp4parse"}
- 
diff --git a/mklangsource.sh b/mklangsource.sh
index 4269457..18db2a7 100755
--- a/mklangsource.sh
+++ b/mklangsource.sh
@@ -9,7 +9,7 @@ tbver=`rpmspec -P thunderbird.spec |awk '/^Version:/ { print $2; exit }'`
 tag=THUNDERBIRD_${tbver//./_}_RELEASE
 branch=`rpmspec -P thunderbird.spec | awk '/^%define *tarballdir/ { print $3; exit }'`
 #locales=$PWD/thunderbird-${tbver}/${branch}/calendar/locales/shipped-locales
-locales=$PWD/thunderbird-${tbver}/thunderbird-${tbver}/calendar/locales/shipped-locales
+locales=$PWD/thunderbird-${tbver}/calendar/locales/shipped-locales
 #locales=$PWD/shipped-locales
 if [ ! -f $locales ]
 then
@@ -42,7 +42,7 @@ rm -rf l10n-merged
 cp -R l10n l10n-merged
 for lang in $(<$locales)
 do
-  compare-locales --merge l10n-merged/$lang $PWD/thunderbird-${tbver}/thunderbird-${tbver}/calendar/locales/l10n.ini l10n $lang
+  compare-locales --merge l10n-merged/$lang $PWD/thunderbird-${tbver}/calendar/locales/l10n.ini l10n $lang
 done
 
 
diff --git a/sources b/sources
index dd0fc3e..5a16216 100644
--- a/sources
+++ b/sources
@@ -1,3 +1,3 @@
-SHA512 (thunderbird-52.3.0.source.tar.xz) = 10e6495d207328aae325a797be1de5e535b5d967df929b0af9d7554d0473b5a7931c8f9cb1793e843b1913f441f790169dd4ac1ad9e0e53e66bc8e1c1dd60e66
-SHA512 (thunderbird-langpacks-52.3.0-20170821.tar.xz) = b55de6bd7502278f073bce6f58d8a765d8c877310c6668affd8b303fbb02afc0909d8a65263ea3e07e86dd96c91a47b56865e8fdef2b5775f13448889d376b38
-SHA512 (l10n-lightning-52.3.0.tar.xz) = 17d1f60c156a7d035c01286af445677372c5d43dcbd38e995c3f94bc9bb272ae354e92f41f7dcb8f87b2d2c2631f20fc87a1c2f5b51c29e7f272e5591c517d6c
+SHA512 (thunderbird-52.4.0.source.tar.xz) = ea371ea657c7c10abef9785131030035e541999d62f079e10c60f961190eda06d7bb56e3b1192b77df23e765542c0b61899776a076443f4ca7ad40a81612a93b
+SHA512 (thunderbird-langpacks-52.4.0-20171003.tar.xz) = 3c5ec61f2976cc12fe58580305b0b6d60f60fb83f8d4b3c32bb93ac05c6e704e831fbb30ae7d697342c955366b73a7088be4aeca948a9d489afbc0e55565800c
+SHA512 (l10n-lightning-52.4.0.tar.xz) = 8a8d19d6a84d3fb447ca8874cb857f327967a74008784a8011dc3bc13ef50d17b22bb254a65d3cb9198623d8928a4aaa6cb0f4145d3716d36931082c5d187664
diff --git a/thunderbird.spec b/thunderbird.spec
index 7e09bad..789d7cc 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -72,7 +72,7 @@
 # Bump one with each minor lightning release
 %define gdata_version 3.3
 # BUMP VERSION THERE:
-%define gdata_version_internal 0.6
+%define gdata_version_internal 0.7
 %global gdata_extname %{_libdir}/mozilla/extensions/{3550f703-e582-4d05-9a08-453d09bdfdc6}/{a62ef8ec-5fdc-40c2-873c-223b8a6925cc}
 
 # The tarball is pretty inconsistent with directory structure.
@@ -95,14 +95,14 @@
 
 Summary:        Mozilla Thunderbird mail/newsgroup client
 Name:           thunderbird
-Version:        52.3.0
+Version:        52.4.0
 Release:        1%{?dist}
 URL:            http://www.mozilla.org/projects/thunderbird/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 Group:          Applications/Internet
 Source0:        ftp://ftp.mozilla.org/pub/thunderbird/releases/%{version}%{?pre_version}/source/thunderbird-%{version}%{?pre_version}.source.tar.xz
 %if %{build_langpacks}
-Source1:        thunderbird-langpacks-%{version}-20170821.tar.xz
+Source1:        thunderbird-langpacks-%{version}-20171003.tar.xz
 %endif
 # Locales for lightning
 Source2:        l10n-lightning-%{version}.tar.xz
@@ -139,7 +139,6 @@ Patch302:       mozilla-1228540.patch
 Patch303:       mozilla-1253216.patch
 Patch304:       mozilla-1245783.patch
 Patch305:       build-fix-dupes.patch
-Patch306:       build-toml-fix.patch
 Patch307:       build-missing-xlocale-h.patch
 
 # Fedora specific patches
@@ -282,7 +281,6 @@ cd mozilla
 cd ..
 
 %patch305 -p1 -b .fix-dupes
-%patch306 -p1 -b .build-toml-fix
 %patch105 -p1 -b .bad-langs
 %patch200 -p1 -b .addons
 
@@ -734,6 +732,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #===============================================================================
 
 %changelog
+* Tue Oct  3 2017 Jan Horak <jhorak@redhat.com> - 52.4.0-1
+- Update to 52.4.0
+
 * Mon Aug 21 2017 Jan Horak <jhorak@redhat.com> - 52.3.0-1
 - Update to 52.3.0