diff --git a/thunderbird/user.js b/thunderbird/user.js
index 4472d2a..5697ce4 100644
--- a/thunderbird/user.js
+++ b/thunderbird/user.js
@@ -1,4 +1,3 @@
-user_pref("browser.theme.dark-toolbar-theme", false);
 user_pref("browser.newtabpage.enabled", false);
 user_pref("browser.region.network.url", "");
 user_pref("browser.region.update.enabled", false);