diff --git a/assets/base.mozconfig b/assets/base.mozconfig
index 588160e..385bf44 100644
--- a/assets/base.mozconfig
+++ b/assets/base.mozconfig
@@ -7,7 +7,7 @@ ac_add_options --disable-debug
 ac_add_options --disable-default-browser-agent
 ac_add_options --disable-tests
 ac_add_options --disable-updater
-# ac_add_options --enable-hardening
+ac_add_options --enable-hardening
 # ac_add_options --enable-jxl
 # ac_add_options --enable-optimize
 ac_add_options --enable-release