--- a/devtools/client/responsive.html/test/browser/browser_resize_cmd.js
+++ b/devtools/client/responsive.html/test/browser/browser_resize_cmd.js
@@ -1,19 +1,16 @@
 /* Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/ */
 
 "use strict";
 
 /* global ResponsiveUIManager */
 /* eslint key-spacing: 0 */
 
-// This test is too slow for debug builds (bug 1297205)
-requestLongerTimeout(2);
-
 add_task(function* () {
   let manager = ResponsiveUIManager;
   let done;
 
   function isOpen() {
     return ResponsiveUIManager.isActiveForTab(gBrowser.selectedTab);
   }
 

--- a/devtools/client/responsive.html/test/browser/browser_toolbox_swap_browsers.js
+++ b/devtools/client/responsive.html/test/browser/browser_toolbox_swap_browsers.js
@@ -2,19 +2,16 @@
    http://creativecommons.org/publicdomain/zero/1.0/ */
 
 "use strict";
 
 // Verify that toolbox remains open when opening and closing RDM.
 
 const TEST_URL = "http://example.com/";
 
-// Bug 1297575: Too slow for debug runs
-requestLongerTimeout(2);
-
 function getServerConnections(browser) {
   ok(browser.isRemoteBrowser, "Content browser is remote");
   return ContentTask.spawn(browser, {}, function* () {
     const Cu = Components.utils;
     const { require } = Cu.import("resource://devtools/shared/Loader.jsm", {});
     const { DebuggerServer } = require("devtools/server/main");
     if (!DebuggerServer._connections) {
       return 0;