diff --git a/pkgs/applications/networking/browsers/firefox/common.nix b/pkgs/applications/networking/browsers/firefox/common.nix
index 98f72cf803d..c3228a6a728 100644
--- a/pkgs/applications/networking/browsers/firefox/common.nix
+++ b/pkgs/applications/networking/browsers/firefox/common.nix
@@ -51,7 +51,7 @@
 # https://github.com/NixOS/nixpkgs/issues/31843#issuecomment-346372756 we
 # have permission to use the official firefox branding.
 #
-# Fur purposes of documentation the statement of @sylvestre:
+# For purposes of documentation the statement of @sylvestre:
 # > As the person who did part of the work described in the LWN article
 # > and release manager working for Mozilla, I can confirm the statement
 # > that I made in