--- a/devtools/client/webconsole/new-console-output/test/mochitest/browser.ini
+++ b/devtools/client/webconsole/new-console-output/test/mochitest/browser.ini
@@ -55,17 +55,16 @@ support-files =
   test-bug-599725-response-headers.sjs
   test-bug-601177-log-levels.html
   test-bug-601177-log-levels.js
   test-bug-603750-websocket.html
   test-bug-603750-websocket.js
   test-cd-iframe-child.html
   test-cd-iframe-parent.html
   test-console-api-iframe.html
-  test-bug-618078-network-exceptions.html
   test-bug-630733-response-redirect-headers.sjs
   test-bug-632275-getters.html
   test-bug-632347-iterators-generators.html
   test-bug-644419-log-limits.html
   test-bug-646025-console-file-location.html
   test-bug-658368-time-methods.html
   test-bug-737873-mixedcontent.html
   test-bug-752559-ineffective-iframe-sandbox-warning-inner.html
@@ -138,16 +137,17 @@ support-files =
   test-location-debugger-link-console-log.js
   test-location-debugger-link-errors.js
   test-location-debugger-link.html
   test-location-styleeditor-link-1.css
   test-location-styleeditor-link-2.css
   test-location-styleeditor-link.html
   test-mixedcontent-securityerrors.html
   test-mutation.html
+  test-network-exceptions.html
   test-network-request.html
   test-network.html
   test-observe-http-ajax.html
   test-own-console.html
   test-property-provider.html
   test-repeated-messages.html
   test-result-format-as-string.html
   test-sourcemap-error-01.html
@@ -351,17 +351,16 @@ skip-if = true #	Bug 1404886
 [browser_webconsole_multiline_input.js]
 skip-if = true # Bug 1408941
 [browser_webconsole_multiple_windows_and_tabs.js]
 skip-if = true # Bug 1408942
 [browser_webconsole_netlogging_reset_filter.js]
 skip-if = true #	Bug 1405636
 [browser_webconsole_network_attach.js]
 [browser_webconsole_network_exceptions.js]
-skip-if = true # Bug 1408943
 [browser_webconsole_network_messages_expand.js]
 [browser_webconsole_network_messages_openinnet.js]
 [browser_webconsole_network_requests_from_chrome.js]
 [browser_webconsole_nodes_highlight.js]
 [browser_webconsole_nodes_select.js]
 [browser_webconsole_notifications.js]
 skip-if = true #	Bug 1405637
 [browser_webconsole_object_inspector.js]

--- a/devtools/client/webconsole/new-console-output/test/mochitest/browser_webconsole_network_exceptions.js
+++ b/devtools/client/webconsole/new-console-output/test/mochitest/browser_webconsole_network_exceptions.js
@@ -5,32 +5,25 @@
 
 // Tests that we report JS exceptions in event handlers coming from
 // network requests, like onreadystate for XHR. See bug 618078.
 
 "use strict";
 
 const TEST_URI = "data:text/html;charset=utf-8,Web Console test for bug 618078";
 const TEST_URI2 = "http://example.com/browser/devtools/client/webconsole/" +
-                  "test/test-bug-618078-network-exceptions.html";
+                  "new-console-output/test/mochitest/test-network-exceptions.html";
 
-add_task(function* () {
-  yield loadTab(TEST_URI);
-
-  let hud = yield openConsole();
+add_task(async function () {
+  let hud = await openNewTabAndConsole(TEST_URI);
 
   // On e10s, the exception is triggered in child process
   // and is ignored by test harness
   if (!Services.appinfo.browserTabsRemoteAutostart) {
     expectUncaughtException();
   }
 
-  BrowserTestUtils.loadURI(gBrowser.selectedBrowser, TEST_URI2);
-
-  yield waitForMessages({
-    webconsole: hud,
-    messages: [{
-      text: "bug618078exception",
-      category: CATEGORY_JS,
-      severity: SEVERITY_ERROR,
-    }],
-  });
+  let onMessage = waitForMessage(hud, "bug618078exception");
+  await loadDocument(TEST_URI2);
+  let { node } = await onMessage;
+  ok(true, "Network exception logged as expected.");
+  ok(node.classList.contains("error"), "Network exception is logged as error.");
 });

rename from devtools/client/webconsole/new-console-output/test/mochitest/test-bug-618078-network-exceptions.html
rename to devtools/client/webconsole/new-console-output/test/mochitest/test-network-exceptions.html