--- a/dom/chrome/security/security.properties
+++ b/dom/chrome/security/security.properties
@@ -155,13 +155,16 @@ HTTPSOnlyFailedDowngradeAgain = Peningka
 # when the transaction is actually submitted. HTTPS-Only and HTTPS-First will upgrade such
 # speculative TCP connections from http to https.
 # %1$S is the URL of the upgraded speculative TCP connection; %2$S is the upgraded scheme.
 HTTPSOnlyUpgradeSpeculativeConnection = Meningkatkan sambungan TCP spekulatif tidak aman “%1$S” untuk menggunakan “%2$S”.
 
 # LOCALIZATION NOTE: %S is the URL of the blocked request;
 IframeSandboxBlockedDownload = Unduhan "%S" diblokir karena iframe pemicunya memiliki tanda sandbox.
 
+# LOCALIZATION NOTE: %S is the URL of the blocked request;
+SandboxBlockedCustomProtocols = Navigasi diblokir ke protokol kustom “%S” dari konteks terkotakpasir.
+
 # Sanitizer API
 # LOCALIZATION NOTE: Please do not localize "DocumentFragment". It's the name of an API.
 SanitizerRcvdNoInput = Menerima data kosong atau tanpa input. Mengembalikan DocumentFragment kosong.
 # LOCALIZATION NOTE: "Sanitizer" is the name of the API. Please do not localize.
 SanitizerOptionsDiscarded = Opsiuntuk konstruktor Sanitizer belum didukung. Perhatikan bahwa ini adalah perilaku eksperimental.