--- a/browser/app/profile/firefox.js
+++ b/browser/app/profile/firefox.js
@@ -1518,16 +1518,18 @@ pref("toolkit.telemetry.shutdownPingSend
 // Enables sending a duplicate of the first shutdown ping from the first session.
 pref("toolkit.telemetry.firstShutdownPing.enabled", true);
 // Enables sending the 'new-profile' ping on new profiles.
 pref("toolkit.telemetry.newProfilePing.enabled", true);
 // Enables sending 'update' pings on Firefox updates.
 pref("toolkit.telemetry.updatePing.enabled", true);
 // Enables sending 'bhr' pings when the browser hangs.
 pref("toolkit.telemetry.bhrPing.enabled", true);
+// Enables using Hybrid Content Telemetry from Mozilla privileged pages.
+pref("toolkit.telemetry.hybridContent.enabled", true);
 
 // Telemetry experiments settings.
 pref("experiments.enabled", true);
 pref("experiments.manifest.fetchIntervalSeconds", 86400);
 pref("experiments.manifest.uri", "https://telemetry-experiment.cdn.mozilla.net/manifest/v1/firefox/%VERSION%/%CHANNEL%");
 // Whether experiments are supported by the current application profile.
 pref("experiments.supported", true);