diff --git a/toolkit/content/aboutTelemetry.js b/toolkit/content/aboutTelemetry.js
index 7d11d161e152..15f01d3de150 100644
--- a/toolkit/content/aboutTelemetry.js
+++ b/toolkit/content/aboutTelemetry.js
@@ -13,11 +13,14 @@ Cu.import("resource://gre/modules/Services.jsm");
 const Telemetry = Services.telemetry;
 const bundle = Services.strings.createBundle(
   "chrome://global/locale/aboutTelemetry.properties");
+const brandBundle = Services.strings.createBundle(
+  "chrome://branding/locale/brand.properties");
 const TelemetryPing = Cc["@mozilla.org/base/telemetry-ping;1"].
   getService(Ci.nsIObserver);
 
 // Maximum height of a histogram bar (in em)
 const MAX_BAR_HEIGHT = 18;
+const PREF_TELEMETRY_SERVER_OWNER = "toolkit.telemetry.server_owner";
 const PREF_TELEMETRY_ENABLED = "toolkit.telemetry.enabled";
 const PREF_DEBUG_SLOW_SQL = "toolkit.telemetry.debugSlowSql";
 const PREF_SYMBOL_SERVER_URI = "profiler.symbolicationUrl";
@@ -598,6 +601,19 @@ function toggleSection(aEvent) {
   toggleLinks[1].classList.toggle("hidden");
 }
 
+/**
+ * Sets the text of the page header based on a config pref + bundle strings
+ */
+function setupPageHeader()
+{
+  let serverOwner = getPref(PREF_TELEMETRY_SERVER_OWNER, "Mozilla");
+  let brandName = brandBundle.GetStringFromName("brandFullName");
+  let subtitleText = bundle.formatStringFromName(
+    "pageSubtitle", [serverOwner, brandName], 2);
+
+  let subtitleElement = document.getElementById("page-subtitle");
+  subtitleElement.appendChild(document.createTextNode(subtitleText));
+}
 
 /**
  * Initializes load/unload, pref change and mouse-click listeners
@@ -645,6 +661,9 @@ function setupListeners() {
 function onLoad() {
   window.removeEventListener("load", onLoad);
 
+  // Set the text in the page header
+  setupPageHeader();
+
   // Set up event listeners
   setupListeners();
 
diff --git a/toolkit/content/aboutTelemetry.xhtml b/toolkit/content/aboutTelemetry.xhtml
index d3969ef292d7..3a93494f79ac 100644
--- a/toolkit/content/aboutTelemetry.xhtml
+++ b/toolkit/content/aboutTelemetry.xhtml
@@ -28,7 +28,7 @@
     <header id="page-description">
       <h1>&aboutTelemetry.pageTitle;</h1>
 
-      <h2>&aboutTelemetry.pageSubtitle;</h2>
+      <h2 id="page-subtitle"></h2>
 
       <p id="description-enabled">&aboutTelemetry.telemetryEnabled;</p>
       <p id="description-disabled">&aboutTelemetry.telemetryDisabled;</p>
diff --git a/toolkit/locales/en-US/chrome/global/aboutTelemetry.dtd b/toolkit/locales/en-US/chrome/global/aboutTelemetry.dtd
index 0a484d213a7b..8233a499fb18 100644
--- a/toolkit/locales/en-US/chrome/global/aboutTelemetry.dtd
+++ b/toolkit/locales/en-US/chrome/global/aboutTelemetry.dtd
@@ -4,11 +4,6 @@
 
 <!ENTITY aboutTelemetry.pageTitle "Telemetry Data">
 
-<!ENTITY aboutTelemetry.pageSubtitle "
-  This page shows the performance and feature-use data collected by Telemetry.
-  This information is submitted anonymously to Mozilla to help improve &brandShortName;.
-">
-
 <!ENTITY aboutTelemetry.telemetryEnabled "
   Telemetry is <span>enabled</span>.
 ">
diff --git a/toolkit/locales/en-US/chrome/global/aboutTelemetry.properties b/toolkit/locales/en-US/chrome/global/aboutTelemetry.properties
index f259350ae336..3386dcb8c468 100644
--- a/toolkit/locales/en-US/chrome/global/aboutTelemetry.properties
+++ b/toolkit/locales/en-US/chrome/global/aboutTelemetry.properties
@@ -2,6 +2,11 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
+# Note to translators:
+# - %1$S will be replaced by brandFullName
+# - %2$S will be replaced with the value of the toolkit.telemetry.server_owner preference
+pageSubtitle = This page shows the information about performance, hardware, usage and customizations collected by Telemetry. This information is submitted to %1$S to help improve %2$S.
+
 slowSqlMain = Slow SQL Statements on Main Thread
 
 slowSqlOther = Slow SQL Statements on Helper Threads
@@ -12,11 +17,10 @@ slowSqlAverage = Avg. Time (ms)
 
 slowSqlStatement = Statement
 
-# Note to translators: Please leave the %S specifiers in the translated string.
-# They will be replaced with values programmaticaly, e.g. "Hang Report #3 (5 seconds)"
-# - The first %S will be replaced with the number of the hang
-# - The second %S will be replaced with the duration of the hang
-hangTitle = Hang Report #%S (%S seconds)
+# Note to translators:
+# - The %1$S will be replaced with the number of the hang
+# - The %2$S will be replaced with the duration of the hang
+hangTitle = Hang Report #%1$S (%2$S seconds)
 
 stackTitle = Stack: