diff --git a/app/assets/javascripts/app/controllers/_application_controller.js.coffee b/app/assets/javascripts/app/controllers/_application_controller.js.coffee
index f531f504f..4a1b20afb 100644
--- a/app/assets/javascripts/app/controllers/_application_controller.js.coffee
+++ b/app/assets/javascripts/app/controllers/_application_controller.js.coffee
@@ -29,6 +29,16 @@ class App.Controller extends Spine.Controller
       ajaxId = App.Ajax.request(data)
       @ajaxCalls.push ajaxId
 
+  navigate: (location, hide_current_location_from_history = false) ->
+    @log 'notice', "navigate to '#{location}'"
+
+    # hide current location from browser history, allow to use back button in browser
+    if hide_current_location_from_history
+      @log 'debug', "ignore new location from browser histroy '#{location}'"
+      if window.history
+        window.history.replaceState(null, null, location)
+    super location
+
   bind: (event, callback) =>
     App.Event.bind(
       event
diff --git a/app/assets/javascripts/app/controllers/default_route.js.coffee b/app/assets/javascripts/app/controllers/default_route.js.coffee
index a253a6222..e0e96218c 100644
--- a/app/assets/javascripts/app/controllers/default_route.js.coffee
+++ b/app/assets/javascripts/app/controllers/default_route.js.coffee
@@ -9,24 +9,24 @@ class Index extends App.Controller
 
     # check if import is active
     if !@Config.get('system_init_done') && @Config.get('import_mode')
-      @navigate '#import'
+      @navigate '#import', true
       return
 
     # route to getting started screen
     if !@Config.get('system_init_done')
-      @navigate '#getting_started'
+      @navigate '#getting_started', true
       return
 
     # check role
     if @isRole('Customer')
-      @navigate '#ticket/view/my_tickets'
+      @navigate '#ticket/view/my_tickets', true
       return
 
     if @Config.get('default_controller')
-      @navigate @Config.get('default_controller')
+      @navigate @Config.get('default_controller'), true
       return
 
-    @navigate '#dashboard'
+    @navigate '#dashboard', true
 
 App.Config.set( '', Index, 'Routes' )
 App.Config.set( '/', Index, 'Routes' )
diff --git a/app/assets/javascripts/app/controllers/ticket_zoom.js.coffee b/app/assets/javascripts/app/controllers/ticket_zoom.js.coffee
index 6d39c03f4..9568e9d2b 100644
--- a/app/assets/javascripts/app/controllers/ticket_zoom.js.coffee
+++ b/app/assets/javascripts/app/controllers/ticket_zoom.js.coffee
@@ -88,7 +88,12 @@ class App.TicketZoom extends App.Controller
     '#ticket/zoom/' + @ticket_id
 
   show: (params) =>
-    return if @activeState
+
+    # if controller is executed twice, go to latest article
+    if @activeState
+      @scrollToBottom()
+      return
+
     @activeState = true
 
     App.Event.trigger('ui::ticket::shown', { ticket_id: @ticket_id } )
diff --git a/app/assets/javascripts/app/controllers/widget/online_notification.js.coffee b/app/assets/javascripts/app/controllers/widget/online_notification.js.coffee
index 240d511a7..18e902637 100644
--- a/app/assets/javascripts/app/controllers/widget/online_notification.js.coffee
+++ b/app/assets/javascripts/app/controllers/widget/online_notification.js.coffee
@@ -93,6 +93,18 @@ class App.OnlineNotificationWidget extends App.Controller
       @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) =>
       e.preventDefault()
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 b2a7c797f..31591a5f5 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
@@ -4,7 +4,7 @@
     <a class="activity-avatar user-popover" data-id="<%= item.created_by_id %>" href="<%- item.created_by.uiUrl() %>">
       <%- item.created_by.avatar() %>
     </a>
-    <a href="<%- item.link %>" class="activity-body">
+    <a href="<%- item.link %>" class="activity-body js-locationVerify">
       <span class="activity-message">
         <span class="activity-text">
           <%= item.created_by.displayName() %> <%- @T( item.type ) %> <%- @T( item.object_name ) %><% if item.title: %> (<%= item.title %>)<% end %>
diff --git a/app/controllers/sessions/collection_base.rb b/app/controllers/sessions/collection_base.rb
index f4772bcf7..5bcfb5132 100644
--- a/app/controllers/sessions/collection_base.rb
+++ b/app/controllers/sessions/collection_base.rb
@@ -11,7 +11,7 @@ module ExtraCollection
       assets = item.assets(assets)
     }
 
-    collections[ OnlineNotification.to_app_model ] = OnlineNotification.list(user, 30)
+    collections[ OnlineNotification.to_app_model ] = OnlineNotification.list(user, 50)
     assets = ApplicationModel.assets_of_object_list(collections[ OnlineNotification.to_app_model ], assets)
 
     collections[ RecentView.to_app_model ] = RecentView.list(user, 10)