diff --git a/src/browser/app/profile/zen-browser.js b/src/browser/app/profile/zen-browser.js
index 9846e2db..2228603f 100644
--- a/src/browser/app/profile/zen-browser.js
+++ b/src/browser/app/profile/zen-browser.js
@@ -172,3 +172,7 @@ pref("sidebar.verticalTabs", false, locked);
 // Better Windows theming
 pref("widget.non-native-theme.scrollbar.style", 2);
 pref("widget.non-native-theme.use-theme-accent", true);
+
+// Expose Letterboxing https://github.com/zen-browser/desktop/issues/475
+pref("privacy.resistFingerprinting.letterboxing", false);
+pref("privacy.resistFingerprinting.letterboxing.dimensions", "");