diff --git a/pkgs/applications/networking/browsers/firefox/common.nix b/pkgs/applications/networking/browsers/firefox/common.nix
index 75646389badf..c49d2f2a3177 100644
--- a/pkgs/applications/networking/browsers/firefox/common.nix
+++ b/pkgs/applications/networking/browsers/firefox/common.nix
@@ -260,7 +260,6 @@ buildStdenv.mkDerivation ({
     "--with-system-icu"
     "--enable-system-ffi"
     "--enable-system-pixman"
-    #"--enable-system-cairo"
     "--disable-tests"
     "--disable-updater"
     "--enable-default-toolkit=${default-toolkit}"