diff --git a/addon/webextension/selector/ui.js b/addon/webextension/selector/ui.js
index 61349588c3..63947e3496 100644
--- a/addon/webextension/selector/ui.js
+++ b/addon/webextension/selector/ui.js
@@ -84,6 +84,8 @@ this.ui = (function() { // eslint-disable-line no-unused-vars
         <ul>
           <li data-l10n-id="downloadOnlyDetailsPrivate"></li>
           <li data-l10n-id="downloadOnlyDetailsNeverRemember"></li>
+          <li data-l10n-id="downloadOnlyDetailsESR"></li>
+          <li data-l10n-id="downloadOnlyDetailsNoUploadPref"></li>
         </ul>
       </div>
       <tbody>
diff --git a/locales/en-US/webextension.properties b/locales/en-US/webextension.properties
index 7bdbb1bfaa..1328f08472 100644
--- a/locales/en-US/webextension.properties
+++ b/locales/en-US/webextension.properties
@@ -12,12 +12,15 @@ cancelScreenshot = Cancel
 downloadScreenshot = Download
 downloadOnlyNotice = You are currently in Download-Only mode.
 # The downloadOnlyDetails string introduces a list of items. The keys
-# downloadOnlyDetailsPrivate, downloadOnlyDetailsThirdParty, and
-# downloadOnlyDetailsNeverRemember are list items in that list.
+# downloadOnlyDetailsPrivate, downloadOnlyDetailsThirdParty,
+# downloadOnlyDetailsNeverRemember, downloadOnlyDetailsESR, and
+# downloadOnlyDetailsNoUploadPref are list items in that list.
 downloadOnlyDetails = Firefox Screenshots automatically changes to Download-Only mode in these situations:
 downloadOnlyDetailsPrivate = In a Private Browsing window.
 downloadOnlyDetailsThirdParty = Third-party cookies are disabled.
 downloadOnlyDetailsNeverRemember = “Never remember history” is enabled.
+downloadOnlyDetailsESR = You are using Firefox ESR.
+downloadOnlyDetailsNoUploadPref = Uploads have been disabled.
 notificationLinkCopiedTitle = Link Copied
 # The string "{meta_key}-V" should be translated to the region-specific
 # shorthand for the Paste keyboard shortcut. {meta_key} is a placeholder for the