diff --git a/pkgs/applications/networking/mailreaders/thunderbird-bin/default.nix b/pkgs/applications/networking/mailreaders/thunderbird-bin/default.nix
index 967e2ac86a3..b1905359cd3 100644
--- a/pkgs/applications/networking/mailreaders/thunderbird-bin/default.nix
+++ b/pkgs/applications/networking/mailreaders/thunderbird-bin/default.nix
@@ -1,22 +1,31 @@
-{ stdenv, fetchurl, config, makeWrapper
+{ stdenv, lib, fetchurl, config, makeWrapper
 , alsaLib
 , at-spi2-atk
 , atk
 , cairo
+, coreutils
 , cups
 , curl
-, dbus-glib
 , dbus
+, dbus-glib
 , fontconfig
 , freetype
 , gdk-pixbuf
 , glib
 , glibc
+, gnome3
+, gnugrep
+, gnupg
+, gnused
+, gpgme
 , gtk2
 , gtk3
 , kerberos
+, libcanberra
+, libGL
+, libGLU
 , libX11
-, libXScrnSaver
+, libxcb
 , libXcomposite
 , libXcursor
 , libXdamage
@@ -25,22 +34,14 @@
 , libXi
 , libXinerama
 , libXrender
+, libXScrnSaver
 , libXt
-, libxcb
-, libcanberra
-, gnome3
-, libGLU, libGL
 , nspr
 , nss
 , pango
+, runtimeShell
 , writeScript
 , xidel
-, coreutils
-, gnused
-, gnugrep
-, gnupg
-, gpgme
-, runtimeShell
 }:
 
 # imports `version` and `sources`
@@ -59,9 +60,9 @@ let
 
   systemLocale = config.i18n.defaultLocale or "en-US";
 
-  defaultSource = stdenv.lib.findFirst (sourceMatches "en-US") {} sources;
+  defaultSource = lib.findFirst (sourceMatches "en-US") {} sources;
 
-  source = stdenv.lib.findFirst (sourceMatches systemLocale) defaultSource sources;
+  source = lib.findFirst (sourceMatches systemLocale) defaultSource sources;
 
   name = "thunderbird-bin-${version}";
 in
@@ -76,7 +77,7 @@ stdenv.mkDerivation {
 
   phases = "unpackPhase installPhase";
 
-  libPath = stdenv.lib.makeLibraryPath
+  libPath = lib.makeLibraryPath
     [ stdenv.cc.cc
       alsaLib
       at-spi2-atk
@@ -111,7 +112,7 @@ stdenv.mkDerivation {
       nspr
       nss
       pango
-    ] + ":" + stdenv.lib.makeSearchPathOutput "lib" "lib64" [
+    ] + ":" + lib.makeSearchPathOutput "lib" "lib64" [
       stdenv.cc.cc
     ];
 
@@ -163,8 +164,8 @@ stdenv.mkDerivation {
         --set SNAP_NAME "thunderbird" \
         --set MOZ_LEGACY_PROFILES 1 \
         --set MOZ_ALLOW_DOWNGRADE 1 \
-        --prefix PATH : "${stdenv.lib.getBin gnupg}/bin" \
-        --prefix LD_LIBRARY_PATH : "${stdenv.lib.getLib gpgme}/lib"
+        --prefix PATH : "${lib.getBin gnupg}/bin" \
+        --prefix LD_LIBRARY_PATH : "${lib.getLib gpgme}/lib"
     '';
 
   passthru.updateScript = import ./../../browsers/firefox-bin/update.nix {
@@ -174,14 +175,14 @@ stdenv.mkDerivation {
     basePath = "pkgs/applications/networking/mailreaders/thunderbird-bin";
     baseUrl = "http://archive.mozilla.org/pub/thunderbird/releases/";
   };
-  meta = with stdenv.lib; {
+  meta = with lib; {
     description = "Mozilla Thunderbird, a full-featured email client (binary package)";
     homepage = "http://www.mozilla.org/thunderbird/";
     license = {
       free = false;
       url = "http://www.mozilla.org/en-US/foundation/trademarks/policy/";
     };
-    maintainers = with stdenv.lib.maintainers; [ ];
+    maintainers = with lib.maintainers; [ ];
     platforms = platforms.linux;
   };
 }
diff --git a/pkgs/applications/networking/mailreaders/thunderbird/default.nix b/pkgs/applications/networking/mailreaders/thunderbird/default.nix
index 8a2c891c16b..2e41883b40b 100644
--- a/pkgs/applications/networking/mailreaders/thunderbird/default.nix
+++ b/pkgs/applications/networking/mailreaders/thunderbird/default.nix
@@ -14,15 +14,15 @@
 , freetype
 , glib
 , gnugrep
-, gnused
 , gnupg
+, gnused
 , gpgme
 , icu
 , jemalloc
 , lib
+, libevent
 , libGL
 , libGLU
-, libevent
 , libjpeg
 , libnotify
 , libpng
@@ -338,7 +338,7 @@ stdenv.mkDerivation rec {
 
   requiredSystemFeatures = [ "big-parallel" ];
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     description = "A full-featured e-mail client";
     homepage = "https://www.thunderbird.net";
     maintainers = with maintainers; [