--- a/devtools/client/jar.mn
+++ b/devtools/client/jar.mn
@@ -4,17 +4,16 @@
 
 devtools.jar:
 %   content devtools %content/
     content/shared/vendor/d3.js (shared/vendor/d3.js)
     content/shared/vendor/dagre-d3.js (shared/vendor/dagre-d3.js)
     content/shared/widgets/widgets.css (shared/widgets/widgets.css)
     content/shared/widgets/VariablesView.xul (shared/widgets/VariablesView.xul)
     content/webconsole/index.html (webconsole/index.html)
-    content/webconsole/browserconsole.xul (webconsole/browserconsole.xul)
 *   content/scratchpad/index.xul (scratchpad/index.xul)
     content/shared/splitview.css (shared/splitview.css)
     content/shared/theme-switching.js (shared/theme-switching.js)
 *   content/styleeditor/index.xul (styleeditor/index.xul)
 *   content/storage/index.xul (storage/index.xul)
     content/inspector/markup/markup.xhtml (inspector/markup/markup.xhtml)
     content/inspector/animation-old/animation-controller.js (inspector/animation-old/animation-controller.js)
     content/inspector/animation-old/animation-panel.js (inspector/animation-old/animation-panel.js)

--- a/devtools/client/preferences/devtools-client.js
+++ b/devtools/client/preferences/devtools-client.js
@@ -228,19 +228,16 @@ pref("devtools.scratchpad.enabled", fals
 pref("devtools.dom.enabled", false);
 
 // Make sure the Accessibility panel is hidden by default
 pref("devtools.accessibility.enabled", false);
 
 // Web Audio Editor Inspector Width should be a preference
 pref("devtools.webaudioeditor.inspectorWidth", 300);
 
-// Experimental UI for the browser console that doesn't use a XUL wrapper doc
-pref("devtools.browserconsole.html", false);
-
 // Web console filters
 pref("devtools.webconsole.filter.error", true);
 pref("devtools.webconsole.filter.warn", true);
 pref("devtools.webconsole.filter.info", true);
 pref("devtools.webconsole.filter.log", true);
 pref("devtools.webconsole.filter.debug", true);
 pref("devtools.webconsole.filter.css", false);
 pref("devtools.webconsole.filter.net", false);

deleted file mode 100644
--- a/devtools/client/webconsole/browserconsole.xul
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
-<!-- This Source Code Form is subject to the terms of the Mozilla Public
-   - License, v. 2.0. If a copy of the MPL was not distributed with this
-   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
-<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
-        id="devtools-webconsole"
-        macanimationtype="document"
-        fullscreenbutton="true"
-        title=""
-        windowtype="devtools:webconsole"
-        width="900" height="350"
-        persist="screenX screenY width height sizemode">
-  <link rel="localization" href="toolkit/main-window/editmenu.ftl"/>
-  <script type="text/javascript" src="chrome://global/content/l10n.js"></script>
-  <popupset></popupset>
-  <iframe src="index.html" flex="1"></iframe>
-</window>

--- a/devtools/client/webconsole/components/JSTerm.js
+++ b/devtools/client/webconsole/components/JSTerm.js
@@ -1470,18 +1470,17 @@ class JSTerm extends Component {
       .paddingLeft.replace(/[^0-9.]/g, "") - 4;
   }
 
   onContextMenu(e) {
     // The toolbox does it's own edit menu handling with
     // toolbox-textbox-context-popup and friends. For now, fall
     // back to use that if running inside the toolbox, but use our
     // own menu when running in the Browser Console (see Bug 1476097).
-    if (this.props.hud.isBrowserConsole &&
-        Services.prefs.getBoolPref("devtools.browserconsole.html")) {
+    if (this.props.hud.isBrowserConsole) {
       this.props.serviceContainer.openEditContextMenu(e);
     }
   }
 
   destroy() {
     this.clearCompletion();
 
     this.webConsoleClient.clearNetworkRequests();

--- a/devtools/client/webconsole/hudservice.js
+++ b/devtools/client/webconsole/hudservice.js
@@ -170,37 +170,26 @@ HUDService.prototype = {
 
       const client = new DebuggerClient(DebuggerServer.connectPipe());
       await client.connect();
       const response = await client.getProcess();
       return { form: response.form, client, chrome: true, isBrowsingContext: true };
     }
 
     async function openWindow(t) {
-      const win = Services.ww.openWindow(null, Tools.webConsole.browserConsoleURL,
+      const win = Services.ww.openWindow(null, Tools.webConsole.url,
                                        "_blank", BC_WINDOW_FEATURES, null);
-      let iframeWindow = win;
 
       await new Promise(resolve => {
         win.addEventListener("DOMContentLoaded", resolve, {once: true});
       });
 
       win.document.title = l10n.getStr("browserConsole.title");
 
-      // With a XUL wrapper doc, we host index.html in an iframe.
-      // Wait for that to be ready before resolving:
-      if (!Tools.webConsole.browserConsoleUsesHTML) {
-        const iframe = win.document.querySelector("iframe");
-        await new Promise(resolve => {
-          iframe.addEventListener("DOMContentLoaded", resolve, {once: true});
-        });
-        iframeWindow = iframe.contentWindow;
-      }
-
-      return {iframeWindow, chromeWindow: win};
+      return {iframeWindow: win, chromeWindow: win};
     }
 
     // Temporarily cache the async startup sequence so that if toggleBrowserConsole
     // gets called again we can return this console instead of opening another one.
     this._browserConsoleInitializing = (async () => {
       const connection = await connect();
       const target = await TargetFactory.forRemoteTab(connection);
       const {iframeWindow, chromeWindow} = await openWindow(target);

--- a/devtools/client/webconsole/test/mochitest/browser_console_context_menu_entries.js
+++ b/devtools/client/webconsole/test/mochitest/browser_console_context_menu_entries.js
@@ -6,18 +6,17 @@
 // Check that we display the expected context menu entries.
 
 const TEST_URI = "http://example.com/browser/devtools/client/webconsole/" +
                  "test/mochitest/test-console.html";
 
 add_task(async function() {
   // Enable net messages in the console for this test.
   await pushPref("devtools.browserconsole.filter.net", true);
-  // These are required for testing the text input in the browser console:
-  await pushPref("devtools.browserconsole.html", true);
+  // This is required for testing the text input in the browser console:
   await pushPref("devtools.chrome.enabled", true);
 
   await addTab(TEST_URI);
   const hud = await HUDService.toggleBrowserConsole();
 
   info("Reload the content window to produce a network log");
   const onNetworkMessage = waitForMessage(hud, "test-console.html");
   ContentTask.spawn(gBrowser.selectedBrowser, null, () => {

--- a/devtools/client/webconsole/test/mochitest/browser_console_open_or_focus.js
+++ b/devtools/client/webconsole/test/mochitest/browser_console_open_or_focus.js
@@ -22,19 +22,19 @@ add_task(async function() {
 
   ok(hud.ui.document.hasFocus(), "Focus in the document");
 
   console.log(TEST_MESSAGE);
 
   await waitFor(() => findMessage(hud, TEST_MESSAGE));
 
   currWindow = Services.wm.getMostRecentWindow(null);
-  is(currWindow.document.documentURI, Tools.webConsole.browserConsoleURL,
+  is(currWindow.document.documentURI, Tools.webConsole.url,
      "The Browser Console is open and has focus");
   mainWindow.focus();
   await HUDService.openBrowserConsoleOrFocus();
   currWindow = Services.wm.getMostRecentWindow(null);
-  is(currWindow.document.documentURI, Tools.webConsole.browserConsoleURL,
+  is(currWindow.document.documentURI, Tools.webConsole.url,
      "The Browser Console is open and has focus");
   await HUDService.toggleBrowserConsole();
   hud = HUDService.getBrowserConsole();
   ok(!hud, "Browser Console has been closed");
 });