diff --git a/components/browser/errorpages/src/main/res/values-en-rCA/strings.xml b/components/browser/errorpages/src/main/res/values-en-rCA/strings.xml
index 4f2129a423f..66e1b357b5d 100644
--- a/components/browser/errorpages/src/main/res/values-en-rCA/strings.xml
+++ b/components/browser/errorpages/src/main/res/values-en-rCA/strings.xml
@@ -1,14 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <!-- The default document title of an error page (i.e., the contents of the `<title>` tag). -->
-    <string name="mozac_browser_errorpages_page_title">Problem loading page</string>
 
     <!-- The button that appears at the bottom of an error page. -->
     <string name="mozac_browser_errorpages_page_refresh">Try Again</string>
 
-    <!-- The button that appears at the bottom of an error page. -->
-    <string name="mozac_browser_errorpages_page_go_back">Go Back</string>
-
     <!-- The document title and heading of an error page shown when a website cannot be loaded for an unknown reason. -->
     <string name="mozac_browser_errorpages_generic_title">Cannot Complete Request</string>
     <!-- The error message shown when a website cannot be loaded for an unknown reason. -->
@@ -271,4 +266,11 @@
     <string name="mozac_browser_errorpages_safe_phishing_uri_message"><![CDATA[
       <p>This web page at %1$s has been reported as a deceptive site and has been blocked based on your security preferences.</p>
     ]]></string>
+
+    <!-- The title of the error page for websites that do not support HTTPS when HTTPS-Only is turned on -->
+    <string name="mozac_browser_errorpages_httpsonly_title">Secure Site Not Available</string>
+    <!-- The text of the error page for websites that do not support HTTPS when HTTPS-Only is turned on. %1$s will be replaced with the URL of the website. -->
+    <string name="mozac_browser_errorpages_httpsonly_message"><![CDATA[You’ve enabled HTTPS-Only Mode for enhanced security, and a HTTPS version of <em>%1$s</em> is not available.]]></string>
+    <!-- Button on error page for websites that do not support HTTPS when HTTPS-Only is turned on. Clicking the button allows the user to nevertheless load the website using HTTP. -->
+    <string name="mozac_browser_errorpages_httpsonly_button">Continue to HTTP Site</string>
 </resources>
diff --git a/components/feature/downloads/src/main/res/values-en-rCA/strings.xml b/components/feature/downloads/src/main/res/values-en-rCA/strings.xml
index e0de2567ca5..fb702f10cf0 100644
--- a/components/feature/downloads/src/main/res/values-en-rCA/strings.xml
+++ b/components/feature/downloads/src/main/res/values-en-rCA/strings.xml
@@ -44,4 +44,13 @@
     <string name="mozac_feature_downloads_unable_to_open_third_party_app">Unable to open %1$s</string>
     <!-- Text for the info dialog when write to storage permissions have been denied but user tries to download a file. -->
     <string name="mozac_feature_downloads_write_external_storage_permissions_needed_message">Files and media permission access needed to download files. Go to Android settings, tap permissions, and tap allow.</string>
+
+    <!-- Alert dialog confirmation before cancelling downloads, this is the title   -->
+    <string name="mozac_feature_downloads_cancel_active_downloads_warning_content_title">Cancel private downloads?</string>
+    <!-- Alert dialog confirmation before cancelling private downloads, this is the body. %1$s will be replaced with the name of the file. -->
+    <string name="mozac_feature_downloads_cancel_active_private_downloads_warning_content_body">If you close all Private tabs now, %1$s download will be cancelled. Are you sure you want to leave Private Browsing?</string>
+    <!-- Alert dialog confirmation before cancelling downloads, this is the positive action. -->
+    <string name="mozac_feature_downloads_cancel_active_downloads_accept">Cancel downloads</string>
+    <!-- Alert dialog confirmation before cancelling downloads, this is the negative action. Leaves user in Private browsing -->
+    <string name="mozac_feature_downloads_cancel_active_private_downloads_deny">Stay in private browsing</string>
 </resources>
diff --git a/components/feature/sitepermissions/src/main/res/values-en-rCA/strings.xml b/components/feature/sitepermissions/src/main/res/values-en-rCA/strings.xml
index 24216413f7c..950181c9e58 100644
--- a/components/feature/sitepermissions/src/main/res/values-en-rCA/strings.xml
+++ b/components/feature/sitepermissions/src/main/res/values-en-rCA/strings.xml
@@ -35,4 +35,12 @@
     <string name="mozac_feature_sitepermissions_persistent_storage_title">Allow %1$s to store data in persistent storage?</string>
     <!-- Title of a dialog to use EME. %1$s will be replaced with the URL of the current page -->
     <string name="mozac_feature_sitepermissions_media_key_system_access_title">Allow %1$s to play DRM-controlled content?</string>
+    <!-- Title of a dialog to use cross origin storage permission. %1$s is the name of the site URL (www.site1.example) trying to track the user's activity.
+     %2$s is the name of the site URL (www.site2.example) that the user is visiting.  This is the same domain name displayed in the address bar -->
+    <string name="mozac_feature_sitepermissions_storage_access_title">Allow %1$s to use its cookies on %2$s?</string>
+    <!-- Message of a dialog offering more context about the cross origin storage permission.
+    %s is the name of the site URL (www.site1.example) trying to track the user's activity. -->
+    <string name="mozac_feature_sitepermissions_storage_access_message">You may want to block access if it\'s not clear why %s needs this data.</string>
+    <!-- Clickable text that will open a new tab navigating the user to online documentation about specific features. -->
+    <string name="mozac_feature_sitepermissions_learn_more_title">Learn more</string>
 </resources>