diff --git a/.mozconfig b/.mozconfig
index d71c858844e3..2d295de7df72 100755
--- a/.mozconfig
+++ b/.mozconfig
@@ -16,8 +16,8 @@ export MOZILLA_OFFICIAL=1
 ac_add_options --enable-optimize
 ac_add_options --enable-official-branding
 
-# Let's support GTK3 for ESR60
-ac_add_options --enable-default-toolkit=cairo-gtk3
+## Let's support GTK3 for ESR60
+#ac_add_options --enable-default-toolkit=cairo-gtk3
 
 ac_add_options --disable-strip
 ac_add_options --disable-install-strip