diff --git a/browser/locales/en-US/chrome/browser/browser.properties b/browser/locales/en-US/chrome/browser/browser.properties
index 94995ec84a3f..72b1e13875ea 100644
--- a/browser/locales/en-US/chrome/browser/browser.properties
+++ b/browser/locales/en-US/chrome/browser/browser.properties
@@ -974,6 +974,7 @@ autoplay.Allow2.accesskey = A
 autoplay.DontAllow.label = Don’t Allow
 autoplay.DontAllow.accesskey = n
 autoplay.remember = Remember this decision
+autoplay.remember-private = Remember for this session
 # LOCALIZATION NOTE (autoplay.message): %S is the name of the site URL (https://...) trying to autoplay media
 autoplay.message = Will you allow %S to autoplay media with sound?
 autoplay.messageWithFile = Will you allow this file to autoplay media with sound?
diff --git a/browser/modules/PermissionUI.jsm b/browser/modules/PermissionUI.jsm
index 047feb8a8e2c..fb2410fd2ff9 100644
--- a/browser/modules/PermissionUI.jsm
+++ b/browser/modules/PermissionUI.jsm
@@ -800,13 +800,12 @@ AutoplayPermissionPrompt.prototype = {
   get popupOptions() {
     let learnMoreURL =
       Services.urlFormatter.formatURLPref("app.support.baseURL") + "block-autoplay";
-    let checkbox = {
-      show: !PrivateBrowsingUtils.isWindowPrivate(this.browser.ownerGlobal) &&
-        !this.principal.URI.schemeIs("file")
-    };
+    let checkbox = {show: !this.principal.URI.schemeIs("file")};
     if (checkbox.show) {
       checkbox.checked = true;
-      checkbox.label = gBrowserBundle.GetStringFromName("autoplay.remember");
+      checkbox.label = PrivateBrowsingUtils.isWindowPrivate(this.browser.ownerGlobal) ?
+        gBrowserBundle.GetStringFromName("autoplay.remember-private") :
+        gBrowserBundle.GetStringFromName("autoplay.remember");
     }
     return {
       checkbox,