diff --git a/components/browser/errorpages/src/main/res/values-te/strings.xml b/components/browser/errorpages/src/main/res/values-te/strings.xml
index f14a53a4c5c..29300458e0d 100644
--- a/components/browser/errorpages/src/main/res/values-te/strings.xml
+++ b/components/browser/errorpages/src/main/res/values-te/strings.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<resources>
+<resources xmlns:tools="http://schemas.android.com/tools" xmlns:moz="http://mozac.org/tools">
 
     <!-- The button that appears at the bottom of an error page. -->
     <string name="mozac_browser_errorpages_page_refresh">తిరిగి ప్రయత్నించు</string>
@@ -39,6 +39,15 @@
     <!-- The text shown inside the advanced options button used to bypass the invalid SSL certificate. It's only shown if the user has expanded the advanced options. -->
     <string name="mozac_browser_errorpages_security_bad_cert_accept_temporary">నష్టభయాన్ని అంగీకరించి ముందుకు కొనసాగండి</string>
 
+    <!-- The document title and heading of the error page shown when a website uses HSTS. -->
+    <string name="mozac_browser_errorpages_security_bad_hsts_cert_title">ఈ వెబ్‌సైటుకి సురక్షిత అనుసంధానం కావాలి.</string>
+
+    <!-- The text shown inside the advanced button used to expand the advanced options. It's only shown when a website uses HSTS. -->
+    <string name="mozac_browser_errorpages_security_bad_hsts_cert_advanced">ఉన్నతం…</string>
+
+    <!-- The text shown inside the advanced options button used to go back. It's only shown if the user has expanded the advanced options. -->
+    <string name="mozac_browser_errorpages_security_bad_hsts_cert_back">వెనుకకు వెళ్ళు</string>
+
     <!-- The document title and heading of the error page shown when the user's network connection is interrupted while connecting to a website. -->
     <string name="mozac_browser_errorpages_net_interrupt_title">అనుసంధానానికి అంతరాయం కలిగింది</string>