diff --git a/mozilla/mail/locales/en-US/chrome/messenger/messenger.properties b/mozilla/mail/locales/en-US/chrome/messenger/messenger.properties
index 1208a4c7966..213505bf4a7 100644
--- a/mozilla/mail/locales/en-US/chrome/messenger/messenger.properties
+++ b/mozilla/mail/locales/en-US/chrome/messenger/messenger.properties
@@ -341,3 +341,10 @@ alertNoSearchFoldersSelected=You must choose at least one folder to search for t
 # LOCALIZATION NOTES(????ByteAbbreviation): Do not translate %d below, it is the size of the message/folder
 kiloByteAbbreviation=%dKB
 megaByteAbbreviation=%dMB
+
+# Warnings to alert users about phishing urls
+confirmPhishingTitle=Possible Email Scam Detected
+#LOCALIZATION NOTE %1$S is the brand name, %2$S is the host name of the url being visited
+confirmPhishingUrl1=%1$S thinks this URL is suspicious. The host of this URL, %2$S, is a numerical IP address. Most legitimate sites use names. Are you sure you wish to visit this URL?
+confirmPhishingUrl2=%1$S thinks this URL is suspicious. The actual host of this URL, %2$S, is different from the one shown to you, %3$S. Are you sure you wish to visit this URL?
+