diff --git a/MozillaThunderbird.changes b/MozillaThunderbird.changes
index 29194c0..cd68fa3 100644
--- a/MozillaThunderbird.changes
+++ b/MozillaThunderbird.changes
@@ -39,6 +39,18 @@ Mon Aug 31 12:08:25 UTC 2020 - Wolfgang Rosenauer <wr@rosenauer.org>
   * many new and changed features
     https://www.thunderbird.net/en-US/thunderbird/78.0/releasenotes/#whatsnew
   * built-in OpenPGP support (enigmail neither required nor supported)
+- added platform patches:
+  * mozilla-s390x-skia-gradient.patch
+  * mozilla-pipewire-0-3.patch
+  * mozilla-bmo1512162.patch
+  * mozilla-bmo1626236.patch
+  * mozilla-bmo998749.patch
+  * mozilla-sandbox-fips.patch
+- removed obsolete platform patches
+  * mozilla-s390-bigendian.patch
+  * mozilla-nestegg-big-endian.patch
+  * mozilla-openaes-decl.patch
+  * mozilla-cubeb-noreturn.patch
 
 -------------------------------------------------------------------
 Sun Aug 30 11:05:01 UTC 2020 - Wolfgang Rosenauer <wr@rosenauer.org>
diff --git a/kde.js b/kde.js
deleted file mode 100644
index f06d73a..0000000
--- a/kde.js
+++ /dev/null
@@ -1 +0,0 @@
-pref("browser.preferences.instantApply", false);
diff --git a/thunderbird-broken-locales-build.patch b/thunderbird-broken-locales-build.patch
deleted file mode 100644
index e429197..0000000
--- a/thunderbird-broken-locales-build.patch
+++ /dev/null
@@ -1,16 +0,0 @@
-# HG changeset patch
-# Parent  b2d2d5ae8d2a00ddbf496e415fdde16d08e35884
-This has been submitted upstream: 
-https://bugzilla.mozilla.org/show_bug.cgi?id=1580701
-
-diff -r b2d2d5ae8d2a -r 91fa98f1d233 comm/mail/locales/l10n.ini
---- a/comm/mail/locales/l10n.ini	Fri May 31 11:28:11 2019 +0200
-+++ b/comm/mail/locales/l10n.ini	Wed Sep 11 15:01:55 2019 +0200
-@@ -13,5 +13,5 @@
- # include toolkit from mozilla.
- # Don't specify which, use l10n-central.ini and friends if you're
- # not working on a local check-out
--toolkit = mozilla/toolkit/locales/l10n.ini
--devtools_client = mozilla/devtools/client/locales/l10n.ini
-+toolkit = ../toolkit/locales/l10n.ini
-+devtools_client = ../devtools/client/locales/l10n.ini
diff --git a/thunderbird.js b/thunderbird.js
deleted file mode 100644
index 0df9f9e..0000000
--- a/thunderbird.js
+++ /dev/null
@@ -1 +0,0 @@
-pref("browser.preferences.instantApply", true);