--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -1250,17 +1250,17 @@ pref("privacy.donottrackheader.enabled",
 // and for all PopupNotifications, the secondary action of
 // the popup will be called when the popup is dismissed.
 pref("privacy.permissionPrompts.showCloseButton", false);
 // Enforce tracking protection in all modes
 pref("privacy.trackingprotection.enabled",  false);
 // Enforce tracking protection in Private Browsing mode
 pref("privacy.trackingprotection.pbmode.enabled",  true);
 // Annotate channels based on the tracking protection list in all modes
-pref("privacy.trackingprotection.annotate_channels",  true);
+pref("privacy.trackingprotection.annotate_channels", false);
 // Lower the priority of network loads for resources on the tracking protection list.
 // Note that this requires the privacy.trackingprotection.annotate_channels pref to be on in order to have any effect.
 pref("privacy.trackingprotection.lower_network_priority",  false);
 
 pref("dom.event.contextmenu.enabled",       true);
 pref("dom.event.clipboardevents.enabled",   true);
 pref("dom.event.highrestimestamp.enabled",  true);