diff --git a/browser/app/profile/firefox.js b/browser/app/profile/firefox.js
index 8e242d00e5e3..33440af56afb 100644
--- a/browser/app/profile/firefox.js
+++ b/browser/app/profile/firefox.js
@@ -2722,3 +2722,10 @@ pref("browser.places.snapshots.expiration.userManaged.days", 420);
 pref("browser.firefox-view.feature-tour", "{\"message\":\"FIREFOX_VIEW_FEATURE_TOUR\",\"screen\":\"FIREFOX_VIEW_SPOTLIGHT\",\"complete\":false}");
 // Number of times the user visited about:firefoxview
 pref("browser.firefox-view.view-count", 0);
+
+// Enables cookie banner handling in Nightly in Private Browsing Mode. See
+// StaticPrefList.yaml for a description of the prefs.
+#ifdef NIGHTLY_BUILD
+  pref("cookiebanners.service.mode.privateBrowsing", 1);
+  pref("cookiebanners.bannerClicking.enabled", true);
+#endif