--- a/toolkit/locales/en-US/chrome/passwordmgr/passwordmgr.properties
+++ b/toolkit/locales/en-US/chrome/passwordmgr/passwordmgr.properties
@@ -66,9 +66,13 @@ loginsDescriptionFiltered=The following 
 # 1st string is the username for the login, 2nd is the login's age.
 loginHostAge=%1$S (%2$S)
 # LOCALIZATION NOTE (noUsername):
 # String is used on the context menu when a login doesn't have a username.
 noUsername=No username
 duplicateLoginTitle=Login already exists
 duplicateLogin=A duplicate login already exists.
 
-insecureFieldWarningDescription = This connection is not secure. Logins entered here could be compromised.
+# LOCALIZATION NOTE (insecureFieldWarningDescription2, insecureFieldWarningDescription3):
+# %1$S will contain insecureFieldWarningLearnMore and look like a link to indicate that clicking will open a tab with support information.
+insecureFieldWarningDescription2 = This connection is not secure. Logins entered here could be compromised. %1$S
+insecureFieldWarningDescription3 = Logins entered here could be compromised. %1$S
+insecureFieldWarningLearnMore = Learn More