diff --git a/src/mami.js/settings.js b/src/mami.js/settings.js
index 0138601..1daeb42 100644
--- a/src/mami.js/settings.js
+++ b/src/mami.js/settings.js
@@ -361,12 +361,11 @@ const UmiSettings = {
             name: 'Show notifications',
             category: 'notification',
             type: 'checkbox',
-            mutable: true,
+            mutable: (() => 'Notification' in window)(),
             default: false,
             watcher: function(v, n, i) {
-                if(!v) return;
-
-                if(Notification.permission === 'granted' && Notification.permission !== 'denied')
+                if(!v || !('Notification' in window)
+                    || (Notification.permission === 'granted' && Notification.permission !== 'denied'))
                     return;
 
                 Notification.requestPermission()
@@ -381,7 +380,7 @@ const UmiSettings = {
             name: 'Show contents of message',
             category: 'notification',
             type: 'checkbox',
-            mutable: true,
+            mutable: (() => 'Notification' in window)(),
             default: false,
         },
         {
@@ -389,7 +388,7 @@ const UmiSettings = {
             name: 'Triggers',
             category: 'notification',
             type: 'text',
-            mutable: true,
+            mutable: (() => 'Notification' in window)(),
             default: '',
         },
         {