1 files changed, 7 insertions, 0 deletions
diff --git a/toolkit/components/url-classifier/tests/unit/test_malwaretable_pref.js b/toolkit/components/url-classifier/tests/unit/test_malwaretable_pref.js
new file mode 100644
index 0000000000..95a8f1a8e8
--- /dev/null
+++ b/toolkit/components/url-classifier/tests/unit/test_malwaretable_pref.js
@@ -0,0 +1,7 @@
+// Ensure that the default value of malwareTable is always in sorted order
+let originalValue = Services.prefs.getCharPref("urlclassifier.malwareTable");
+let sortedValue = originalValue
+  .split(",")
+  .sort()
+  .join(",");
+Assert.equal(originalValue, sortedValue);