diff --git a/public/locales/sk/app.json b/public/locales/sk/app.json
index 5a765a15..331efc71 100644
--- a/public/locales/sk/app.json
+++ b/public/locales/sk/app.json
@@ -137,5 +137,6 @@
   "{{name}} (Connecting...)": "{{name}} (Pripájanie...)",
   "{{displayName}}, your call is now ended": "{{displayName}}, váš hovor je teraz ukončený",
   "{{count}} people connected|other": "{{count}} osôb pripojených",
-  "{{count}} people connected|one": "{{count}} osoba pripojená"
+  "{{count}} people connected|one": "{{count}} osoba pripojená",
+  "This feature is only supported on Firefox.": "Táto funkcia je podporovaná len v prehliadači Firefox."
 }