--- a/toolkit/mozapps/extensions/test/browser/browser_experiments.js
+++ b/toolkit/mozapps/extensions/test/browser/browser_experiments.js
@@ -224,17 +224,18 @@ add_task(function* testOpenPreferences()
     });
   }, "advanced-pane-loaded", false);
 
   info("Loading preferences pane.");
   // We need to focus before synthesizing the mouse event (bug 1240052) as
   // synthesizeMouseAtCenter currently only synthesizes the mouse in the child process.
   // This can cause some subtle differences if the child isn't focused.
   yield SimpleTest.promiseFocus();
-  yield BrowserTestUtils.synthesizeMouseAtCenter("#experiments-change-telemetry", {}, gBrowser.selectedBrowser);
+  yield BrowserTestUtils.synthesizeMouseAtCenter("#experiments-change-telemetry", {},
+                                                 gBrowser.selectedBrowser);
 
   yield deferred.promise;
 });
 
 add_task(function* testButtonPresence() {
   yield gCategoryUtilities.openType("experiment");
   let item = get_addon_element(gManagerWindow, "test-experiment1@experiments.mozilla.org");
   Assert.ok(item, "Got add-on element.");