diff --git a/locales/es-ES/browser/browser/zen-boosts.ftl b/locales/es-ES/browser/browser/zen-boosts.ftl
new file mode 100644
index 000000000..dfb4cdbd4
--- /dev/null
+++ b/locales/es-ES/browser/browser/zen-boosts.ftl
@@ -0,0 +1,58 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+zen-boost-edit-rename = 
+    .label = Renombrar Boost
+zen-boost-edit-shuffle = 
+    .label = Ambiente aleatorio
+zen-boost-edit-reset = 
+    .label = Restablecer todas las ediciones
+zen-boost-edit-delete = 
+    .label = Borrar Boost
+zen-boost-size = Tamaño
+zen-boost-case = Case
+zen-boost-zap = Borrar
+zen-boost-code = Código
+zen-boost-back = Atrás
+zen-boost-shuffle = 
+    .tooltiptext = Ajustes de Boost aleatorios
+zen-boost-invert = 
+    .tooltiptext = Invertir colores
+zen-boost-controls = 
+    .tooltiptext = Controles de color avanzados
+zen-boost-disable = 
+    .tooltiptext = Desactivar ajustes de color
+zen-boost-text-case-toggle = 
+    .tooltiptext = Alternar mayúsculas/minúsculas
+zen-boost-css-picker = 
+    .tooltiptext = Escoger selector
+zen-boost-css-inspector = 
+    .tooltiptext = Abrir inspector
+zen-bootst-color-contrast = Contraste
+zen-bootst-color-brightness = Brillo
+zen-bootst-color-original-saturation = Saturación original
+zen-add-zap-helper = Haga clic en los elementos de la página para <b>borrarlos</b>
+zen-remove-zap-helper = ← Clic para deshacer
+zen-select-this = Insertar selector para esto
+zen-select-related = Insertar selector para relacionados
+zen-select-cancel = Cancelar
+zen-zap-this = Borrar esto
+zen-zap-related = Borrar todos los elementos relacionados
+zen-zap-cancel = Cancelar
+zen-zap-done = Hecho
+zen-unzap-tooltip =
+    { $elementCount ->
+        [0] Ningún elemento borrado
+        [1] { $elementCount } elemento borrado
+       *[other] { $elementCount } elementos borrados
+    }
+zen-boost-save = 
+    .label = Export Boost
+zen-boost-load = 
+    .label = Import Boost
+zen-panel-ui-boosts-exported-message = ¡Boost exportado!
+zen-site-data-boosts = Boosts
+zen-site-data-create-boost = 
+    .tooltiptext = Crear nuevo Boost
+zen-boost-rename-boost-prompt = ¿Renombrar Boost?