diff --git a/thunderbird-mozconfig b/thunderbird-mozconfig
index 6351930..6a5f711 100644
--- a/thunderbird-mozconfig
+++ b/thunderbird-mozconfig
@@ -16,6 +16,7 @@ ac_add_options --allow-addon-sideload
 ac_add_options --enable-js-shell
 ac_add_options --with-unsigned-addon-scopes=app,system
 ac_add_options --without-wasm-sandboxed-libraries
+ac_add_options --disable-bootstrap