--- a/browser/components/nsBrowserGlue.js
+++ b/browser/components/nsBrowserGlue.js
@@ -2385,17 +2385,23 @@ BrowserGlue.prototype = {
         body = body.replace("#2", deviceName);
       }
 
       const clickCallback = (subject, topic, data) => {
         if (topic == "alertclickcallback") {
           win.gBrowser.selectedTab = firstTab;
         }
       }
-      AlertsService.showAlertNotification(null, title, body, true, null, clickCallback);
+
+      // Specify an icon because on Windows no icon is shown at the moment
+      let imageURL;
+      if (AppConstants.platform == "win") {
+        imageURL = "chrome://branding/content/icon64.png";
+      }
+      AlertsService.showAlertNotification(imageURL, title, body, true, null, clickCallback);
     } catch (ex) {
       Cu.reportError("Error displaying tab(s) received by Sync: " + ex);
     }
   },
 
   _onDeviceDisconnected() {
     let bundle = Services.strings.createBundle("chrome://browser/locale/accounts.properties");
     let title = bundle.GetStringFromName("deviceDisconnectedNotification.title");