diff --git a/docshell/base/nsAboutRedirector.cpp b/docshell/base/nsAboutRedirector.cpp
index 79a4a6623f26..d74db02576d4 100644
--- a/docshell/base/nsAboutRedirector.cpp
+++ b/docshell/base/nsAboutRedirector.cpp
@@ -100,6 +100,10 @@ static RedirEntry kRedirMap[] = {
     nsIAboutModule::URI_MUST_LOAD_IN_CHILD |
     nsIAboutModule::ALLOW_SCRIPT
   },
+  {
+    "profiles", "chrome://global/content/aboutProfiles.xhtml",
+    nsIAboutModule::ALLOW_SCRIPT
+  },
   // about:srcdoc is unresolvable by specification.  It is included here
   // because the security manager would disallow srcdoc iframes otherwise.
   {
diff --git a/docshell/build/nsDocShellModule.cpp b/docshell/build/nsDocShellModule.cpp
index 1b99a3ffe28c..777daabce8de 100644
--- a/docshell/build/nsDocShellModule.cpp
+++ b/docshell/build/nsDocShellModule.cpp
@@ -180,6 +180,7 @@ const mozilla::Module::ContractIDEntry kDocShellContracts[] = {
 #endif
   { NS_ABOUT_MODULE_CONTRACTID_PREFIX "plugins", &kNS_ABOUT_REDIRECTOR_MODULE_CID },
   { NS_ABOUT_MODULE_CONTRACTID_PREFIX "serviceworkers", &kNS_ABOUT_REDIRECTOR_MODULE_CID },
+  { NS_ABOUT_MODULE_CONTRACTID_PREFIX "profiles", &kNS_ABOUT_REDIRECTOR_MODULE_CID },
   { NS_ABOUT_MODULE_CONTRACTID_PREFIX "srcdoc", &kNS_ABOUT_REDIRECTOR_MODULE_CID },
   { NS_ABOUT_MODULE_CONTRACTID_PREFIX "support", &kNS_ABOUT_REDIRECTOR_MODULE_CID },
   { NS_ABOUT_MODULE_CONTRACTID_PREFIX "telemetry", &kNS_ABOUT_REDIRECTOR_MODULE_CID },
diff --git a/toolkit/content/aboutProfiles.js b/toolkit/content/aboutProfiles.js
new file mode 100644
index 000000000000..da0bd84f194c
--- /dev/null
+++ b/toolkit/content/aboutProfiles.js
@@ -0,0 +1,219 @@
+/* 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/. */
+
+'use strict';
+
+const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
+
+Cu.import('resource://gre/modules/Services.jsm');
+Cu.import('resource://gre/modules/XPCOMUtils.jsm');
+
+XPCOMUtils.defineLazyServiceGetter(
+  this,
+  'ProfileService',
+  '@mozilla.org/toolkit/profile-service;1',
+  'nsIToolkitProfileService'
+);
+
+const bundle = Services.strings.createBundle(
+  'chrome://global/locale/aboutProfiles.properties');
+
+function refreshUI() {
+  let parent = document.getElementById('profiles');
+  while (parent.firstChild) {
+    parent.removeChild(parent.firstChild);
+  }
+
+  let iter = ProfileService.profiles;
+  while (iter.hasMoreElements()) {
+    let profile = iter.getNext().QueryInterface(Ci.nsIToolkitProfile);
+    display({ profile: profile,
+              isDefault: profile == ProfileService.defaultProfile,
+              isCurrentProfile: profile == ProfileService.selectedProfile });
+  }
+
+  let createButton = document.getElementById('create-button');
+  createButton.onclick = createProfileWizard;
+
+  let restartSafeModeButton = document.getElementById('restart-in-safe-mode-button');
+  restartSafeModeButton.onclick = function() { restart(true); }
+
+  let restartNormalModeButton = document.getElementById('restart-button');
+  restartNormalModeButton.onclick = function() { restart(false); }
+}
+
+function display(profileData) {
+  let parent = document.getElementById('profiles');
+
+  let div = document.createElement('div');
+  parent.appendChild(div);
+
+  let name = document.createElement('h2');
+  let nameStr = bundle.formatStringFromName('name', [profileData.profile.name], 1);
+  name.appendChild(document.createTextNode(nameStr));
+  div.appendChild(name);
+
+  if (profileData.isCurrentProfile) {
+    let currentProfile = document.createElement('h3');
+    let currentProfileStr = bundle.GetStringFromName('currentProfile');
+    currentProfile.appendChild(document.createTextNode(currentProfileStr));
+    div.appendChild(currentProfile);
+  }
+
+  let table = document.createElement('table');
+  div.appendChild(table);
+
+  let tbody = document.createElement('tbody');
+  table.appendChild(tbody);
+
+  function createItem(title, value) {
+    let tr = document.createElement('tr');
+    tbody.appendChild(tr);
+
+    let th = document.createElement('th');
+    th.setAttribute('class', 'column');
+    th.appendChild(document.createTextNode(title));
+    tr.appendChild(th);
+
+    let td = document.createElement('td');
+    td.appendChild(document.createTextNode(value));
+    tr.appendChild(td);
+  }
+
+  createItem(bundle.GetStringFromName('isDefault'),
+             profileData.isDefault ? bundle.GetStringFromName('yes') : bundle.GetStringFromName('no'));
+
+  createItem(bundle.GetStringFromName('rootDir'), profileData.profile.rootDir.path);
+
+  if (profileData.profile.localDir.path != profileData.profile.rootDir.path) {
+    createItem(bundle.GetStringFromName('localDir'), profileData.profile.localDir.path);
+  }
+
+  let renameButton = document.createElement('button');
+  renameButton.appendChild(document.createTextNode(bundle.GetStringFromName('rename')));
+  renameButton.onclick = function() {
+    renameProfile(profileData.profile);
+  };
+  div.appendChild(renameButton);
+
+  if (!profileData.isCurrentProfile) {
+    let removeButton = document.createElement('button');
+    removeButton.appendChild(document.createTextNode(bundle.GetStringFromName('remove')));
+    removeButton.onclick = function() {
+      removeProfile(profileData.profile);
+    };
+
+    div.appendChild(removeButton);
+  }
+
+  if (!profileData.isDefault) {
+    let defaultButton = document.createElement('button');
+    defaultButton.appendChild(document.createTextNode(bundle.GetStringFromName('setAsDefault')));
+    defaultButton.onclick = function() {
+      defaultProfile(profileData.profile);
+    };
+    div.appendChild(defaultButton);
+  }
+
+  let sep = document.createElement('hr');
+  div.appendChild(sep);
+}
+
+function CreateProfile(profile) {
+  ProfileService.flush();
+  refreshUI();
+}
+
+function createProfileWizard() {
+  // This should be rewritten in HTML eventually.
+  window.openDialog('chrome://mozapps/content/profile/createProfileWizard.xul',
+                    '', 'centerscreen,chrome,modal,titlebar',
+                    ProfileService);
+}
+
+function renameProfile(profile) {
+  let title = bundle.GetStringFromName('renameProfileTitle');
+  let msg = bundle.formatStringFromName('renameProfile', [profile.name], 1);
+  let newName = { value: profile.name };
+
+  if (Services.prompt.prompt(window, title, msg, newName, null,
+                             { value: 0 })) {
+    newName = newName.value;
+
+    if (newName == profile.name) {
+      return;
+    }
+
+    try {
+      profile.name = newName;
+    } catch(e) {
+      let title = bundle.GetStringFromName('invalidProfileNameTitle');
+      let msg = bundle.formatStringFromName('invalidProfileName', [newName], 1);
+      Services.prompt.alert(window, title, msg);
+      return;
+    }
+
+    ProfileService.flush();
+    refreshUI();
+  }
+}
+
+function removeProfile(profile) {
+  let deleteFiles = false;
+
+  if (profile.rootDir.exists()) {
+    let title = bundle.GetStringFromName('deleteProfileTitle');
+    let msg = bundle.formatStringFromName('deleteProfileConfirm',
+                                          [profile.rootDir.path], 1);
+
+    let buttonPressed = Services.prompt.confirmEx(window, title, msg,
+                          (Services.prompt.BUTTON_TITLE_IS_STRING * Services.prompt.BUTTON_POS_0) +
+                          (Services.prompt.BUTTON_TITLE_CANCEL * Services.prompt.BUTTON_POS_1) +
+                          (Services.prompt.BUTTON_TITLE_IS_STRING * Services.prompt.BUTTON_POS_2),
+                          bundle.GetStringFromName('dontDeleteFiles'),
+                          null,
+                          bundle.GetStringFromName('deleteFiles'),
+                          null, {value:0});
+    if (buttonPressed == 1) {
+      return;
+    }
+
+    if (buttonPressed == 2) {
+      deleteFiles = true;
+    }
+  }
+
+  profile.remove(deleteFiles);
+  ProfileService.flush();
+  refreshUI();
+}
+
+function defaultProfile(profile) {
+  ProfileService.defaultProfile = profile;
+  ProfileService.flush();
+  refreshUI();
+}
+
+function restart(safeMode) {
+  let cancelQuit = Cc["@mozilla.org/supports-PRBool;1"]
+                     .createInstance(Ci.nsISupportsPRBool);
+  Services.obs.notifyObservers(cancelQuit, "quit-application-requested", "restart");
+
+  if (cancelQuit.data) {
+    return;
+  }
+
+  let flags = Ci.nsIAppStartup.eAttemptQuit | Ci.nsIAppStartup.eRestartNotSameProfile;
+
+  if (safeMode) {
+    Services.startup.restartInSafeMode(flags);
+  } else {
+    Services.startup.quit(flags);
+  }
+}
+
+window.addEventListener('DOMContentLoaded', function load() {
+  window.removeEventListener('DOMContentLoaded', load);
+  refreshUI();
+});
diff --git a/toolkit/content/aboutProfiles.xhtml b/toolkit/content/aboutProfiles.xhtml
new file mode 100644
index 000000000000..9340541297a0
--- /dev/null
+++ b/toolkit/content/aboutProfiles.xhtml
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- 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/. -->
+
+
+<!DOCTYPE html [
+<!ENTITY % htmlDTD PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd"> %htmlDTD;
+<!ENTITY % globalDTD SYSTEM "chrome://global/locale/global.dtd"> %globalDTD;
+<!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd"> %brandDTD;
+<!ENTITY % profilesDTD SYSTEM "chrome://global/locale/aboutProfiles.dtd"> %profilesDTD;
+]>
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+  <head>
+    <title>&aboutProfiles.title;</title>
+    <link rel="icon" type="image/png" id="favicon" href="chrome://branding/content/icon32.png"/>
+    <link rel="stylesheet" href="chrome://global/skin/in-content/common.css" type="text/css"/>
+    <link rel="stylesheet" href="chrome://mozapps/skin/aboutProfiles.css" type="text/css" />
+    <script type="application/javascript;version=1.7" src="chrome://global/content/aboutProfiles.js" />
+  </head>
+  <body id="body">
+    <div id="action-box">
+      <div>
+        <h3>&aboutProfiles.restart.title;</h3>
+        <button id="restart-in-safe-mode-button">&aboutProfiles.restart.inSafeMode;</button>
+        <button id="restart-button">&aboutProfiles.restart.normal;</button>
+      </div>
+    </div>
+
+    <h1>&aboutProfiles.title;</h1>
+    <div class="page-subtitle">&aboutProfiles.subtitle;</div>
+
+    <div>
+      <button id="create-button">&aboutProfiles.create;</button>
+    </div>
+
+    <div id="profiles" class="tab"></div>
+  </body>
+</html>
diff --git a/toolkit/content/aboutSupport.xhtml b/toolkit/content/aboutSupport.xhtml
index 1330dedf60bc..625f746ada27 100644
--- a/toolkit/content/aboutSupport.xhtml
+++ b/toolkit/content/aboutSupport.xhtml
@@ -216,6 +216,16 @@
             </td>
           </tr>
 
+          <tr class="no-copy">
+            <th class="column">
+              &aboutSupport.appBasicsProfiles;
+            </th>
+
+            <td>
+              <a href="about:profiles">about:profiles</a>
+            </td>
+          </tr>
+
         </tbody>
       </table>
 
diff --git a/toolkit/content/jar.mn b/toolkit/content/jar.mn
index db77aa91bd3f..987206469c52 100644
--- a/toolkit/content/jar.mn
+++ b/toolkit/content/jar.mn
@@ -23,6 +23,8 @@ toolkit.jar:
 #endif
    content/global/aboutNetworking.js
    content/global/aboutNetworking.xhtml
+   content/global/aboutProfiles.js
+   content/global/aboutProfiles.xhtml
    content/global/aboutServiceWorkers.js
    content/global/aboutServiceWorkers.xhtml
    content/global/aboutwebrtc/aboutWebrtc.css   (aboutwebrtc/aboutWebrtc.css)
diff --git a/toolkit/locales/en-US/chrome/global/aboutProfiles.dtd b/toolkit/locales/en-US/chrome/global/aboutProfiles.dtd
new file mode 100644
index 000000000000..48e24923e927
--- /dev/null
+++ b/toolkit/locales/en-US/chrome/global/aboutProfiles.dtd
@@ -0,0 +1,10 @@
+<!-- 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/. -->
+
+<!ENTITY aboutProfiles.title "About Profiles">
+<!ENTITY aboutProfiles.subtitle "This page helps you to manage your profiles. Each profile is a separate world which contains separate history, bookmarks, settings and add-ons.">
+<!ENTITY aboutProfiles.create "Create a New Profile">
+<!ENTITY aboutProfiles.restart.title "Restart">
+<!ENTITY aboutProfiles.restart.inSafeMode "Restart with Add-ons Disabled…">
+<!ENTITY aboutProfiles.restart.normal "Restart normally…">
diff --git a/toolkit/locales/en-US/chrome/global/aboutProfiles.properties b/toolkit/locales/en-US/chrome/global/aboutProfiles.properties
new file mode 100644
index 000000000000..4ca35932d80e
--- /dev/null
+++ b/toolkit/locales/en-US/chrome/global/aboutProfiles.properties
@@ -0,0 +1,33 @@
+# 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/.
+
+name = Profile: %S
+isDefault = Default Profile
+rootDir = Root Directory
+# LOCALIZATION NOTE: localDir is used to show the directory corresponding to
+# the main profile directory that exists for the purpose of storing data on the
+# local filesystem, including cache files or other data files that may not
+# represent critical user data. (e.g., this directory may not be included as
+# part of a backup scheme.)
+# In case localDIr and rootDir are equal, localDir is not shown.
+localDir = Local Directory
+currentProfile = This is the profile in use and it cannot be deleted.
+
+rename = Rename
+remove = Remove
+setAsDefault = Set as default profile
+
+yes = yes
+no = no
+
+renameProfileTitle = Rename Profile
+renameProfile = Rename profile %S
+
+invalidProfileNameTitle = Invalid profile name
+invalidProfileName = The profile name "%S" is not allowed.
+
+deleteProfileTitle = Delete Profile
+deleteProfileConfirm = Deleting a profile will remove the profile from the list of available profiles and cannot be undone.\nYou may also choose to delete the profile data files, including your settings, certificates and other user-related data. This option will delete the folder "%S" and cannot be undone.\nWould you like to delete the profile data files?
+deleteFiles = Delete Files
+dontDeleteFiles = Don't Delete Files
diff --git a/toolkit/locales/en-US/chrome/global/aboutSupport.dtd b/toolkit/locales/en-US/chrome/global/aboutSupport.dtd
index f9d9b6dc2b20..fcda5cd90831 100644
--- a/toolkit/locales/en-US/chrome/global/aboutSupport.dtd
+++ b/toolkit/locales/en-US/chrome/global/aboutSupport.dtd
@@ -59,6 +59,8 @@ Windows/Mac use the term "Folder" instead of "Directory" -->
 <!-- LOCALIZATION NOTE the term "Service Workers" should not be translated. -->
 <!ENTITY aboutSupport.appBasicsServiceWorkers "Registered Service Workers">
 
+<!ENTITY aboutSupport.appBasicsProfiles "Profiles">
+
 <!ENTITY aboutSupport.appBasicsMultiProcessSupport "Multiprocess Windows">
 
 <!ENTITY aboutSupport.appBasicsSafeMode "Safe Mode">
diff --git a/toolkit/locales/jar.mn b/toolkit/locales/jar.mn
index efdbdbe47d0e..ceb83e1eb5be 100644
--- a/toolkit/locales/jar.mn
+++ b/toolkit/locales/jar.mn
@@ -11,6 +11,8 @@
   locale/@AB_CD@/global/aboutReader.properties          (%chrome/global/aboutReader.properties)
   locale/@AB_CD@/global/aboutRights.dtd                 (%chrome/global/aboutRights.dtd)
   locale/@AB_CD@/global/aboutNetworking.dtd             (%chrome/global/aboutNetworking.dtd)
+  locale/@AB_CD@/global/aboutProfiles.dtd               (%chrome/global/aboutProfiles.dtd)
+  locale/@AB_CD@/global/aboutProfiles.properties        (%chrome/global/aboutProfiles.properties)
   locale/@AB_CD@/global/aboutServiceWorkers.dtd         (%chrome/global/aboutServiceWorkers.dtd)
   locale/@AB_CD@/global/aboutServiceWorkers.properties  (%chrome/global/aboutServiceWorkers.properties)
   locale/@AB_CD@/global/aboutSupport.dtd                (%chrome/global/aboutSupport.dtd)
diff --git a/toolkit/themes/shared/aboutProfiles.css b/toolkit/themes/shared/aboutProfiles.css
new file mode 100644
index 000000000000..61bbe8218032
--- /dev/null
+++ b/toolkit/themes/shared/aboutProfiles.css
@@ -0,0 +1,77 @@
+/* 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/. */
+
+html {
+  --aboutSupport-table-background: #ebebeb;
+  background-color: var(--in-content-page-background);
+}
+
+body {
+  margin: 40px 48px;
+}
+
+.page-subtitle {
+  margin-bottom: 3em;
+}
+
+button {
+  -moz-margin-start: 0;
+  -moz-margin-end: 8px;
+}
+
+table {
+  background-color: var(--aboutSupport-table-background);
+  color: var(--in-content-text-color);
+  font: message-box;
+  text-align: start;
+  width: 100%;
+  border: 1px solid var(--in-content-border-color);
+  border-spacing: 0px;
+}
+
+th, td {
+  border: 1px solid var(--in-content-border-color);
+  padding: 4px;
+}
+
+th {
+  text-align: start;
+  background-color: var(--in-content-table-header-background);
+  color: var(--in-content-selected-text);
+}
+
+th.column {
+  white-space: nowrap;
+  width: 0px;
+}
+
+td {
+  text-align: start;
+  border-color: var(--in-content-table-border-dark-color);
+}
+
+#action-box {
+  background-color: var(--aboutSupport-table-background);
+  border: 1px solid var(--in-content-border-color);
+  color: var(--in-content-text-color);
+  float: right;
+  margin-top: 2em;
+  margin-bottom: 20px;
+  -moz-margin-start: 20px;
+  -moz-margin-end: 0;
+  padding: 16px;
+  width: 30%;
+}
+
+#action-box:-moz-dir(rtl) {
+  float: left;
+}
+
+#reset-box > h3 {
+  margin-top: 0;
+}
+
+#action-box button {
+  display: block;
+}
diff --git a/toolkit/themes/shared/mozapps.inc.mn b/toolkit/themes/shared/mozapps.inc.mn
index f8a56c70c129..1eb9766c22f8 100644
--- a/toolkit/themes/shared/mozapps.inc.mn
+++ b/toolkit/themes/shared/mozapps.inc.mn
@@ -17,6 +17,7 @@
   skin/classic/mozapps/formautofill/requestAutocomplete.css  (../../shared/formautofill/requestAutocomplete.css)
   skin/classic/mozapps/plugins/pluginProblem.css             (../../shared/plugins/pluginProblem.css)
   skin/classic/mozapps/aboutNetworking.css                   (../../shared/aboutNetworking.css)
+  skin/classic/mozapps/aboutProfiles.css                     (../../shared/aboutProfiles.css)
   skin/classic/mozapps/aboutServiceWorkers.css               (../../shared/aboutServiceWorkers.css)
   skin/classic/mozapps/plugins/contentPluginActivate.png     (../../shared/plugins/contentPluginActivate.png)
   skin/classic/mozapps/plugins/contentPluginBlocked.png      (../../shared/plugins/contentPluginBlocked.png)