diff --git a/resources/celerity/map.php b/resources/celerity/map.php
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -9,8 +9,8 @@
   'names' => array(
     'conpherence.pkg.css' => 'e68cf1fa',
     'conpherence.pkg.js' => 'b5b51108',
-    'core.pkg.css' => '291cbd98',
-    'core.pkg.js' => '6c085267',
+    'core.pkg.css' => 'fd507b0c',
+    'core.pkg.js' => '548919aa',
     'darkconsole.pkg.js' => '1f9a31bc',
     'differential.pkg.css' => '45951e9e',
     'differential.pkg.js' => 'b71b8c5d',
@@ -40,7 +40,7 @@
     'rsrc/css/application/almanac/almanac.css' => 'dbb9b3af',
     'rsrc/css/application/auth/auth.css' => '0877ed6e',
     'rsrc/css/application/base/main-menu-view.css' => '1802a242',
-    'rsrc/css/application/base/notification-menu.css' => '73fefdfa',
+    'rsrc/css/application/base/notification-menu.css' => 'ff978cad',
     'rsrc/css/application/base/phui-theme.css' => '9f261c6b',
     'rsrc/css/application/base/standard-page-view.css' => '34ee718b',
     'rsrc/css/application/chatlog/chatlog.css' => 'd295b020',
@@ -374,7 +374,7 @@
     'rsrc/image/texture/table_header_hover.png' => '038ec3b9',
     'rsrc/image/texture/table_header_tall.png' => 'd56b434f',
     'rsrc/js/application/aphlict/Aphlict.js' => 'e1d4b11a',
-    'rsrc/js/application/aphlict/behavior-aphlict-dropdown.js' => 'caade6f2',
+    'rsrc/js/application/aphlict/behavior-aphlict-dropdown.js' => 'bba86888',
     'rsrc/js/application/aphlict/behavior-aphlict-listen.js' => 'a14cbdfc',
     'rsrc/js/application/aphlict/behavior-aphlict-status.js' => '5e2634b9',
     'rsrc/js/application/aphlict/behavior-desktop-notifications-control.js' => '27ca6289',
@@ -586,7 +586,7 @@
     'inline-comment-summary-css' => 'f23d4e8f',
     'javelin-aphlict' => 'e1d4b11a',
     'javelin-behavior' => '61cbc29a',
-    'javelin-behavior-aphlict-dropdown' => 'caade6f2',
+    'javelin-behavior-aphlict-dropdown' => 'bba86888',
     'javelin-behavior-aphlict-listen' => 'a14cbdfc',
     'javelin-behavior-aphlict-status' => '5e2634b9',
     'javelin-behavior-aphront-basic-tokenizer' => 'b3a4b884',
@@ -793,7 +793,7 @@
     'phabricator-nav-view-css' => 'faf6a6fc',
     'phabricator-notification' => '5c3349b2',
     'phabricator-notification-css' => '3f6c89c9',
-    'phabricator-notification-menu-css' => '73fefdfa',
+    'phabricator-notification-menu-css' => 'ff978cad',
     'phabricator-object-selector-css' => '85ee8ce6',
     'phabricator-phtize' => 'd254d646',
     'phabricator-prefab' => 'c5af80a2',
@@ -1844,6 +1844,17 @@
       'javelin-vector',
       'javelin-install',
     ),
+    'bba86888' => array(
+      'javelin-behavior',
+      'javelin-request',
+      'javelin-stratcom',
+      'javelin-vector',
+      'javelin-dom',
+      'javelin-uri',
+      'javelin-behavior-device',
+      'phabricator-title',
+      'phabricator-favicon',
+    ),
     'bcaccd64' => array(
       'javelin-behavior',
       'javelin-behavior-device',
@@ -1951,17 +1962,6 @@
       'phabricator-shaped-request',
       'conpherence-thread-manager',
     ),
-    'caade6f2' => array(
-      'javelin-behavior',
-      'javelin-request',
-      'javelin-stratcom',
-      'javelin-vector',
-      'javelin-dom',
-      'javelin-uri',
-      'javelin-behavior-device',
-      'phabricator-title',
-      'phabricator-favicon',
-    ),
     'cae95e89' => array(
       'syntax-default-css',
     ),
diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -3215,6 +3215,7 @@
     'PhabricatorNotificationTestFeedStory' => 'applications/notification/feed/PhabricatorNotificationTestFeedStory.php',
     'PhabricatorNotificationUIExample' => 'applications/uiexample/examples/PhabricatorNotificationUIExample.php',
     'PhabricatorNotificationsApplication' => 'applications/notification/application/PhabricatorNotificationsApplication.php',
+    'PhabricatorNotificationsMarkReadSetting' => 'applications/settings/setting/PhabricatorNotificationsMarkReadSetting.php',
     'PhabricatorNotificationsSetting' => 'applications/settings/setting/PhabricatorNotificationsSetting.php',
     'PhabricatorNotificationsSettingsPanel' => 'applications/settings/panel/PhabricatorNotificationsSettingsPanel.php',
     'PhabricatorNuanceApplication' => 'applications/nuance/application/PhabricatorNuanceApplication.php',
@@ -8585,6 +8586,7 @@
     'PhabricatorNotificationTestFeedStory' => 'PhabricatorFeedStory',
     'PhabricatorNotificationUIExample' => 'PhabricatorUIExample',
     'PhabricatorNotificationsApplication' => 'PhabricatorApplication',
+    'PhabricatorNotificationsMarkReadSetting' => 'PhabricatorInternalSetting',
     'PhabricatorNotificationsSetting' => 'PhabricatorInternalSetting',
     'PhabricatorNotificationsSettingsPanel' => 'PhabricatorSettingsPanel',
     'PhabricatorNuanceApplication' => 'PhabricatorApplication',
diff --git a/src/applications/notification/controller/PhabricatorNotificationClearController.php b/src/applications/notification/controller/PhabricatorNotificationClearController.php
--- a/src/applications/notification/controller/PhabricatorNotificationClearController.php
+++ b/src/applications/notification/controller/PhabricatorNotificationClearController.php
@@ -7,7 +7,9 @@
     $viewer = $request->getViewer();
     $chrono_key = $request->getStr('chronoKey');
 
-    if ($request->isDialogFormPost()) {
+    if ($request->isDialogFormPost() ||
+      $request->isAjax() && !$request->isWorkflow()) {
+
       $table = new PhabricatorFeedStoryNotification();
 
       queryfx(
diff --git a/src/applications/notification/controller/PhabricatorNotificationPanelController.php b/src/applications/notification/controller/PhabricatorNotificationPanelController.php
--- a/src/applications/notification/controller/PhabricatorNotificationPanelController.php
+++ b/src/applications/notification/controller/PhabricatorNotificationPanelController.php
@@ -13,8 +13,12 @@
 
     $stories = $query->execute();
 
+    $mark_all_key = PhabricatorNotificationsMarkReadSetting::SETTINGKEY;
+    $mark_all_value = $viewer->getUserSetting($mark_all_key);
+
     $clear_ui_class = 'phabricator-notification-clear-all';
     $clear_uri = id(new PhutilURI('/notification/clear/'));
+
     if ($stories) {
       $builder = id(new PhabricatorNotificationBuilder($stories))
         ->setUser($viewer);
@@ -30,14 +34,29 @@
         pht('You have no notifications.'));
       $clear_ui_class .= ' disabled';
     }
-    $clear_ui = javelin_tag(
-      'a',
-      array(
-        'sigil' => 'workflow',
-        'href' => (string)$clear_uri,
-        'class' => $clear_ui_class,
-      ),
-      pht('Mark All Read'));
+
+    if ($mark_all_value) {
+      $chrono_key = head($stories)->getChronologicalKey();
+      $clear_ui = phabricator_form(
+        $viewer,
+        array(
+          'method' => 'POST',
+          'action' => '/notification/clear/?chronoKey='.$chrono_key,
+          'sigil' => 'notifications-clear-all-form',
+          'class' => $clear_ui_class,
+          'id' => 'notifications-mark-read',
+        ),
+        pht('Mark All Read'));
+    } else {
+      $clear_ui = javelin_tag(
+        'a',
+        array(
+          'sigil' => 'workflow',
+          'href' => (string)$clear_uri,
+          'class' => $clear_ui_class,
+        ),
+        pht('Mark All Read'));
+    }
 
     $notifications_link = phutil_tag(
       'a',
diff --git a/src/applications/settings/panel/PhabricatorNotificationsSettingsPanel.php b/src/applications/settings/panel/PhabricatorNotificationsSettingsPanel.php
--- a/src/applications/settings/panel/PhabricatorNotificationsSettingsPanel.php
+++ b/src/applications/settings/panel/PhabricatorNotificationsSettingsPanel.php
@@ -32,6 +32,9 @@
     $notifications_key = PhabricatorNotificationsSetting::SETTINGKEY;
     $notifications_value = $preferences->getSettingValue($notifications_key);
 
+    $mark_all_key = PhabricatorNotificationsMarkReadSetting::SETTINGKEY;
+    $mark_all_value = $preferences->getSettingValue($mark_all_key);
+
     if ($request->isFormPost()) {
 
       $this->writeSetting(
@@ -39,6 +42,11 @@
         $notifications_key,
         $request->getInt($notifications_key));
 
+      $this->writeSetting(
+        $preferences,
+        $mark_all_key,
+        $request->getBool($mark_all_key));
+
       return id(new AphrontRedirectResponse())
         ->setURI($this->getPanelURI('?saved=true'));
     }
@@ -149,6 +157,15 @@
           'desktop-notifications-control',
           $control_config))
       ->appendChild(
+        id(new AphrontFormCheckboxControl())
+          ->setLabel('Mark All Read')
+          ->setName($mark_all_key)
+          ->addCheckbox(
+            $mark_all_key,
+            $mark_all_value,
+            pht('Do not prompt before marking all notifications read'),
+            $mark_all_value))
+      ->appendChild(
         id(new AphrontFormSubmitControl())
         ->setValue(pht('Save Preference')));
 
diff --git a/src/applications/settings/setting/PhabricatorNotificationsMarkReadSetting.php b/src/applications/settings/setting/PhabricatorNotificationsMarkReadSetting.php
new file mode 100644
--- /dev/null
+++ b/src/applications/settings/setting/PhabricatorNotificationsMarkReadSetting.php
@@ -0,0 +1,12 @@
+<?php
+
+final class PhabricatorNotificationsMarkReadSetting
+  extends PhabricatorInternalSetting {
+
+  const SETTINGKEY = 'notifications-mark-read';
+
+  public function getSettingName() {
+    return pht('Notifications Mark all Read');
+  }
+
+}
diff --git a/webroot/rsrc/css/application/base/notification-menu.css b/webroot/rsrc/css/application/base/notification-menu.css
--- a/webroot/rsrc/css/application/base/notification-menu.css
+++ b/webroot/rsrc/css/application/base/notification-menu.css
@@ -102,6 +102,11 @@
   font-weight: normal;
 }
 
+.phabricator-notification-header .phabricator-notification-clear-all:hover {
+  text-decoration: underline;
+  cursor: pointer;
+}
+
 .phabricator-notification-footer {
   background: {$greybackground};
   border-top: 1px solid {$thinblueborder};
diff --git a/webroot/rsrc/js/application/aphlict/behavior-aphlict-dropdown.js b/webroot/rsrc/js/application/aphlict/behavior-aphlict-dropdown.js
--- a/webroot/rsrc/js/application/aphlict/behavior-aphlict-dropdown.js
+++ b/webroot/rsrc/js/application/aphlict/behavior-aphlict-dropdown.js
@@ -234,4 +234,21 @@
   JX.Stratcom.listen('notification-panel-close', null, function() {
     set_visible(null);
   });
+
+  function _clearAllNotifications(e) {
+    e.kill();
+
+    var form = e.getNode('tag:form');
+    var uri = JX.$U(window.location);
+    new JX.Request(form.getAttribute('action'), function () {
+      uri.go();
+    }).send();
+
+  }
+
+  JX.Stratcom.listen(
+    'click',
+    'notifications-clear-all-form',
+    _clearAllNotifications);
+
 });