diff --git a/pkgs/applications/networking/mailreaders/thunderbird/68.nix b/pkgs/applications/networking/mailreaders/thunderbird/68.nix
index 4b1efef027e..3143c7f62bb 100644
--- a/pkgs/applications/networking/mailreaders/thunderbird/68.nix
+++ b/pkgs/applications/networking/mailreaders/thunderbird/68.nix
@@ -62,12 +62,9 @@
 , waylandSupport ? true
 , libxkbcommon, calendarSupport ? true
 
-, # If you want the resulting program to call itself "Thunderbird" instead
-# of "Earlybird" or whatever, enable this option.  However, those
-# binaries may not be distributed without permission from the
-# Mozilla Foundation, see
-# http://www.mozilla.org/foundation/trademarks/.
-enableOfficialBranding ? false
+# Use official trademarked branding.  Permission obtained at:
+# https://github.com/NixOS/nixpkgs/pull/94880#issuecomment-675907971
+, enableOfficialBranding ? true
 }:
 
 assert waylandSupport -> gtk3Support == true;
diff --git a/pkgs/applications/networking/mailreaders/thunderbird/default.nix b/pkgs/applications/networking/mailreaders/thunderbird/default.nix
index 961806fa9ab..53d337067d7 100644
--- a/pkgs/applications/networking/mailreaders/thunderbird/default.nix
+++ b/pkgs/applications/networking/mailreaders/thunderbird/default.nix
@@ -60,12 +60,9 @@
 , waylandSupport ? true
 , libxkbcommon, calendarSupport ? true
 
-, # If you want the resulting program to call itself "Thunderbird" instead
-# of "Earlybird" or whatever, enable this option.  However, those
-# binaries may not be distributed without permission from the
-# Mozilla Foundation, see
-# http://www.mozilla.org/foundation/trademarks/.
-enableOfficialBranding ? false
+# Use official trademarked branding.  Permission obtained at:
+# https://github.com/NixOS/nixpkgs/pull/94880#issuecomment-675907971
+, enableOfficialBranding ? true
 }:
 
 assert waylandSupport -> gtk3Support == true;