diff --git a/toolkit/components/telemetry/histogram-whitelists.json b/toolkit/components/telemetry/histogram-whitelists.json
index 6bd2f75e4870..0975f864ac5f 100644
--- a/toolkit/components/telemetry/histogram-whitelists.json
+++ b/toolkit/components/telemetry/histogram-whitelists.json
@@ -512,12 +512,6 @@
     "PLACES_SORTED_BOOKMARKS_PERC",
     "PLACES_TAGGED_BOOKMARKS_PERC",
     "PLACES_TAGS_COUNT",
-    "PLUGINS_INFOBAR_ALLOW",
-    "PLUGINS_INFOBAR_BLOCK",
-    "PLUGINS_INFOBAR_SHOWN",
-    "PLUGINS_NOTIFICATION_PLUGIN_COUNT",
-    "PLUGINS_NOTIFICATION_SHOWN",
-    "PLUGINS_NOTIFICATION_USER_ACTION",
     "PLUGIN_HANG_TIME",
     "PLUGIN_HANG_UI_DONT_ASK",
     "PLUGIN_HANG_UI_RESPONSE_TIME",