diff --git a/app/experiments.js b/app/experiments.js
index 0b27b358..90f3b521 100644
--- a/app/experiments.js
+++ b/app/experiments.js
@@ -18,7 +18,7 @@ const experiments = {
     },
     eligible: function() {
       return (
-        !/firefox/i.test(navigator.userAgent) &&
+        !/firefox|fxios/i.test(navigator.userAgent) &&
         document.querySelector('html').lang === 'en-US'
       );
     },