From 7d765d8f46b479abe69b6da324e6bb6444be5cfd Mon Sep 17 00:00:00 2001
From: Bruno BELANYI <bruno@belanyi.fr>
Date: Mon, 10 May 2021 00:06:04 +0200
Subject: [PATCH] firefox: do not override other attributes in 'cfg' (#1988)

Closes #1962.
---
 modules/programs/firefox.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/programs/firefox.nix b/modules/programs/firefox.nix
index d0dcae5f0..53e1168fe 100644
--- a/modules/programs/firefox.nix
+++ b/modules/programs/firefox.nix
@@ -282,7 +282,7 @@ in
           if isDarwin then
             cfg.package
           else if versionAtLeast config.home.stateVersion "19.09" then
-            cfg.package.override { cfg = fcfg; }
+            cfg.package.override (old: { cfg = old.cfg or {} // fcfg; })
           else
             (pkgs.wrapFirefox.override { config = bcfg; }) cfg.package { };
       in