From 52d952a69df9d6b2a1ed3dcd37ccb8220895dc70 Mon Sep 17 00:00:00 2001
From: Tobias Bora <tobias.bora@gmail.com>
Date: Wed, 16 Dec 2020 10:59:15 +0100
Subject: [PATCH] thunderbird: fix missing icon issue

---
 .../networking/mailreaders/thunderbird/default.nix             | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pkgs/applications/networking/mailreaders/thunderbird/default.nix b/pkgs/applications/networking/mailreaders/thunderbird/default.nix
index 58eae867487f..e5d9d8932f23 100644
--- a/pkgs/applications/networking/mailreaders/thunderbird/default.nix
+++ b/pkgs/applications/networking/mailreaders/thunderbird/default.nix
@@ -266,7 +266,7 @@ stdenv.mkDerivation rec {
       genericName = "Mail Reader";
       name = "thunderbird";
       exec = "thunderbird %U";
-      icon = "$out/lib/thunderbird/chrome/icons/default/default256.png";
+      icon = "thunderbird";
       mimeType = lib.concatStringsSep ";" [
         # Email
         "x-scheme-handler/mailto"
@@ -286,6 +286,7 @@ stdenv.mkDerivation rec {
   postInstall = ''
     # TODO: Move to a dev output?
     rm -rf $out/include $out/lib/thunderbird-devel-* $out/share/idl
+    install -Dm 444 $out/lib/thunderbird/chrome/icons/default/default256.png $out/share/icons/hicolor/256x256/apps/thunderbird.png
   '';
 
   preFixup = ''