diff --git a/metadata.json b/metadata.json
index ec842f4..aefe04c 100644
--- a/metadata.json
+++ b/metadata.json
@@ -1,5 +1,11 @@
 {
   "version": { "license": "MIT" },
   "categories": { "firefox": ["shopping"] },
-  "requires_payment": false
+  "requires_payment": false,
+  "icons": {
+    "16": "icon.png",
+    "32": "icon.png",
+    "48": "icon.png",
+    "128": "icon.png"
+  }
 }
\ No newline at end of file