diff --git a/addon/webextension/selector/ui.js b/addon/webextension/selector/ui.js
index 32e8a06881..a3600acb58 100644
--- a/addon/webextension/selector/ui.js
+++ b/addon/webextension/selector/ui.js
@@ -128,6 +128,7 @@ window.ui = (function () { // eslint-disable-line no-unused-vars
       this.updateElementSize();
       this.element.style.display = "";
       this.initSizeWatch();
+      this.element.focus();
     },
 
     updateElementSize: function (force) {