diff --git a/platform/firefox/vapi-background.js b/platform/firefox/vapi-background.js
index e241ef3..cbd2dfd 100644
--- a/platform/firefox/vapi-background.js
+++ b/platform/firefox/vapi-background.js
@@ -51,7 +51,10 @@ vAPI.app = {
 
 /******************************************************************************/
 
-vAPI.app.restart = function() {};
+vAPI.app.restart = function() {
+    // Observing in bootstrap.js
+    Services.obs.notifyObservers(null, location.host + '-restart', null);
+};
 
 /******************************************************************************/