--- a/devtools/client/webconsole/new-console-output/test/mochitest/browser_webconsole_network_messages_expand.js
+++ b/devtools/client/webconsole/new-console-output/test/mochitest/browser_webconsole_network_messages_expand.js
@@ -5,16 +5,18 @@
 
 const TEST_FILE = "test-network-request.html";
 const TEST_PATH = "http://example.com/browser/devtools/client/webconsole/new-console-output/test/mochitest/";
 const TEST_URI = TEST_PATH + TEST_FILE;
 
 const NET_PREF = "devtools.webconsole.filter.net";
 const XHR_PREF = "devtools.webconsole.filter.netxhr";
 
+requestLongerTimeout(2);
+
 Services.prefs.setBoolPref(NET_PREF, false);
 Services.prefs.setBoolPref(XHR_PREF, true);
 registerCleanupFunction(() => {
   Services.prefs.clearUserPref(NET_PREF);
   Services.prefs.clearUserPref(XHR_PREF);
 });
 
 let tabs = [{