Index: polyfill.js
===================================================================
--- a/polyfill.js
+++ b/polyfill.js
@@ -18,16 +18,17 @@
 "use strict";
 
 {
   const asyncAPIs = [
     "contextMenus.removeAll",
     "devtools.panels.create",
     "notifications.clear",
     "notifications.create",
+    "runtime.getBrowserInfo",
     "runtime.openOptionsPage",
     "runtime.sendMessage",
     "runtime.setUninstallURL",
     "storage.local.get",
     "storage.local.remove",
     "storage.local.set",
     "storage.managed.get",
     "tabs.create",