diff --git a/app/assets/javascripts/app/controllers/widget/online_notification.coffee b/app/assets/javascripts/app/controllers/widget/online_notification.coffee
index 2c4373aa8..ac9b00eb1 100644
--- a/app/assets/javascripts/app/controllers/widget/online_notification.coffee
+++ b/app/assets/javascripts/app/controllers/widget/online_notification.coffee
@@ -88,27 +88,11 @@ class App.OnlineNotificationWidget extends App.Controller
 
     notificationsContainer.find('.popover-content').css('height', "#{heightPopoverContentNew}px")
 
-    # close notification list on click
-    $('.js-notificationsContainer').on('click', (e) =>
-      @hidePopover()
-    )
-
-    # execute controller again of already open (because hash hasn't changed, we need to do it manually)
-    $('.js-locationVerify').on('click', (e) =>
-      newLocation = $(e.target).attr 'href'
-      if !newLocation
-        newLocation = $(e.target).closest('.js-locationVerify').attr 'href'
-      return if !newLocation
-      currentLocation = Spine.Route.getPath()
-      return if newLocation.replace(/#/, '') isnt currentLocation
-      @log 'debug', "execute controller again for '#{currentLocation}' because of same hash"
-      Spine.Route.matchRoutes(currentLocation)
-    )
-
     # mark all notifications as read
-    $('.js-markAllAsRead').on('click', (e) =>
+    notificationsContainer.find('.js-markAllAsRead').on('click', (e) =>
       e.preventDefault()
       @markAllAsRead()
+      @hidePopover()
     )
 
     # add clickCatcher
@@ -154,6 +138,35 @@ class App.OnlineNotificationWidget extends App.Controller
       $( App.view('widget/online_notification_content')(items: items) )
     )
 
+    notificationsContainer  = $('.js-notificationsContainer .popover-content')
+
+    # execute controller again of already open (because hash hasn't changed, we need to do it manually)
+    notificationsContainer.find('.js-locationVerify').on('click', (e) =>
+      newLocation = $(e.target).attr 'href'
+      if !newLocation
+        newLocation = $(e.target).closest('.js-locationVerify').attr 'href'
+      return if !newLocation
+      currentLocation = Spine.Route.getPath()
+      return if newLocation.replace(/#/, '') isnt currentLocation
+      @hidePopover()
+      @log 'debug', "execute controller again for '#{currentLocation}' because of same hash"
+      Spine.Route.matchRoutes(currentLocation)
+    )
+
+    # close notification list on click
+    notificationsContainer.find('.activity-entry').on('click', (e) =>
+      @hidePopover()
+    )
+
+    # remove
+    notificationsContainer.find('.js-remove').on('click', (e) =>
+      e.preventDefault()
+      e.stopPropagation()
+      row = $(e.target).closest('.activity-entry')
+      id = row.data('id')
+      App.OnlineNotification.destroy(id)
+    )
+
   createContainer: =>
     @removeContainer()
 
diff --git a/app/assets/javascripts/app/views/widget/online_notification_content.jst.eco b/app/assets/javascripts/app/views/widget/online_notification_content.jst.eco
index 92c046088..915b64f26 100644
--- a/app/assets/javascripts/app/views/widget/online_notification_content.jst.eco
+++ b/app/assets/javascripts/app/views/widget/online_notification_content.jst.eco
@@ -1,6 +1,6 @@
 <% if @items.length: %>
   <% for item in @items: %>
-  <div class="activity-entry activity-entry--removeable<% if item.seen: %> is-inactive<% end %>">
+  <div class="activity-entry activity-entry--removeable<% if item.seen: %> is-inactive<% end %>" data-id="<%- item.id %>">
     <a class="activity-avatar user-popover" data-id="<%= item.created_by_id %>" href="<%- item.created_by.uiUrl() %>">
       <%- item.created_by.avatar() %>
     </a>
diff --git a/app/controllers/online_notifications_controller.rb b/app/controllers/online_notifications_controller.rb
index 95daa2d0b..ae20a6981 100644
--- a/app/controllers/online_notifications_controller.rb
+++ b/app/controllers/online_notifications_controller.rb
@@ -80,16 +80,30 @@ curl http://localhost/api/v1/online_notifications -v -u #{login}:#{password} -H
 =end
 
   def update
-    notification = OnlineNotification.find(params[:id])
-    if notification.user_id != current_user.id
-      response_access_deny
-      return
-    end
+    return if !access?
     model_update_render(OnlineNotification, params)
   end
 
 =begin
 
+Resource:
+DELETE /api/v1/online_notifications/{id}.json
+
+Response:
+{}
+
+Test:
+curl http://localhost/api/v1/online_notifications/{id}.json -v -u #{login}:#{password} -H "Content-Type: application/json" -X DELETE
+
+=end
+
+  def destroy
+    return if !access?
+    model_destory_render(OnlineNotification, params)
+  end
+
+=begin
+
 Resource:
 PUT /api/v1/online_notifications/mark_all_as_read
 
@@ -114,4 +128,15 @@ curl http://localhost/api/v1/online_notifications/mark_all_as_read -v -u #{login
     render json: {}, status: :ok
   end
 
+  private
+
+  def access?
+    notification = OnlineNotification.find(params[:id])
+    if notification.user_id != current_user.id
+      response_access_deny
+      return false
+    end
+    true
+  end
+
 end
diff --git a/app/controllers/overviews_controller.rb b/app/controllers/overviews_controller.rb
index e430b3351..4ad74fce9 100644
--- a/app/controllers/overviews_controller.rb
+++ b/app/controllers/overviews_controller.rb
@@ -155,7 +155,7 @@ Response:
 {}
 
 Test:
-curl http://localhost/api/v1/overviews.json -v -u #{login}:#{password} -H "Content-Type: application/json" -X DELETE
+curl http://localhost/api/v1/overviews/#{id}.json -v -u #{login}:#{password} -H "Content-Type: application/json" -X DELETE
 
 =end
 
diff --git a/config/routes/online_notification.rb b/config/routes/online_notification.rb
index b7606f39d..92e4e9932 100644
--- a/config/routes/online_notification.rb
+++ b/config/routes/online_notification.rb
@@ -4,6 +4,7 @@ Zammad::Application.routes.draw do
   # groups
   match api_path + '/online_notifications',                   to: 'online_notifications#index',            via: :get
   match api_path + '/online_notifications/:id',               to: 'online_notifications#update',           via: :put
+  match api_path + '/online_notifications/:id',               to: 'online_notifications#destroy',          via: :delete
   match api_path + '/online_notifications/mark_all_as_read',  to: 'online_notifications#mark_all_as_read', via: :post
 
 end