diff --git a/test/content/user-defaults.js b/test/content/user-defaults.js
new file mode 100644
index 0000000000..15f0cb46b3
--- /dev/null
+++ b/test/content/user-defaults.js
@@ -0,0 +1,30 @@
+import userDefaults from '../../common/script/src/content/user-defaults';
+import {each} from 'lodash';
+
+describe('User Default Locales', () => {
+  each(userDefaults, (types, key) => {
+    describe(`${key}`, () => {
+      each(types, (type, index) => {
+        describe(`${key}[${index}]`, () => {
+          if (type.text) {
+            it('has a valid text attribute', () => {
+              expectValidTranslationString(type.text);
+            });
+          }
+
+          if (type.name) {
+            it('has a valid name attribute', () => {
+              expectValidTranslationString(type.name);
+            });
+          }
+
+          if (type.notes) {
+            it('has a valid notes attribute', () => {
+              expectValidTranslationString(type.notes);
+            });
+          }
+        });
+      });
+    });
+  });
+});