--- a/browser/locales/en-US/chrome/browser/preferences/privacy.dtd
+++ b/browser/locales/en-US/chrome/browser/preferences/privacy.dtd
@@ -10,20 +10,17 @@
 <!ENTITY  trackingProtectionPrivate.label      "Only in private windows">
 <!ENTITY  trackingProtectionPrivate.accesskey  "l">
 <!ENTITY  trackingProtectionNever.label        "Never">
 <!ENTITY  trackingProtectionNever.accesskey    "n">
 <!ENTITY  trackingProtectionLearnMore.label    "Learn more">
 <!ENTITY  trackingProtectionExceptions.label   "Exceptions…">
 <!ENTITY  trackingProtectionExceptions.accesskey "x">
 
-<!-- LOCALIZATION NOTE (trackingProtectionPBM5.label): This string is displayed if privacy.trackingprotection.ui.enabled is set to true. This currently happens on the release and beta channel. -->
-<!ENTITY trackingProtectionPBM5.label         "Use Tracking Protection in Private Windows">
-<!ENTITY trackingProtectionPBM5.accesskey     "v">
-<!-- LOCALIZATION NOTE (trackingProtectionPBM6.label): This string is displayed if privacy.trackingprotection.ui.enabled is set to false. This currently happens on the nightly channel. -->
+<!-- LOCALIZATION NOTE (trackingProtectionPBM6.label): This string is displayed if privacy.trackingprotection.ui.enabled is set to false. This currently happens on the release and beta channel. -->
 <!ENTITY trackingProtectionPBM6.label         "Use Tracking Protection in Private Browsing to block known trackers">
 <!ENTITY trackingProtectionPBM6.accesskey     "v">
 <!ENTITY trackingProtectionPBMLearnMore.label "Learn more">
 <!ENTITY changeBlockList2.label               "Change Block List…">
 <!ENTITY changeBlockList2.accesskey           "C">
 
 <!ENTITY  doNotTrack.description        "Send websites a “Do Not Track” signal that you don’t want to be tracked">
 <!ENTITY  doNotTrack.learnMore.label    "Learn more">