diff --git a/app/assets/javascripts/app/controllers/browsercheck_widget.js.coffee b/app/assets/javascripts/app/controllers/browsercheck_widget.js.coffee
new file mode 100644
index 000000000..80eb0b057
--- /dev/null
+++ b/app/assets/javascripts/app/controllers/browsercheck_widget.js.coffee
@@ -0,0 +1,28 @@
+class App.BrowsercheckWidget extends App.Controller
+  constructor: ->
+    super
+
+    # bind on event to show message
+    App.Event.bind 'session:browscheckfailed', (data) =>
+      console.log('hannes was here')
+      new Message(data)
+
+
+class Message extends App.ControllerModal
+  constructor: ->
+    super
+    @render()
+
+  render: ->
+    @html App.view('modal')(
+      title:   @title,
+      message: @message
+      detail:  @detail
+      close:   @close
+    )
+    @modalShow(
+      backdrop: false,
+      keyboard: false,
+    )
+
+App.Config.set( 'browscheckfailed', App.BrowsercheckWidget, 'Widgets' )
diff --git a/app/assets/javascripts/app/lib/app_post/browser.coffee b/app/assets/javascripts/app/lib/app_post/browser.coffee
new file mode 100644
index 000000000..8edebe37e
--- /dev/null
+++ b/app/assets/javascripts/app/lib/app_post/browser.coffee
@@ -0,0 +1,112 @@
+class App.Browser extends App.Controller
+  constructor: ->
+    super
+
+  @init: ->
+    @browser = @searchString(@dataBrowser) or "An unknown browser"
+    @version = @searchVersion(navigator.userAgent) or @searchVersion(navigator.appVersion) or "an unknown version"
+    @OS = @searchString(@dataOS) or "an unknown OS"
+    return @check()
+
+
+  @searchString: (data) ->
+    i = 0
+
+    while i < data.length
+      dataString = data[i].string
+      dataProp = data[i].prop
+      @versionSearchString = data[i].versionSearch or data[i].identity
+      if dataString
+        return data[i].identity  unless dataString.indexOf(data[i].subString) is -1
+      else return data[i].identity  if dataProp
+      i++
+
+  @searchVersion: (dataString) ->
+    index = dataString.indexOf(@versionSearchString)
+    return  if index is -1
+    parseFloat dataString.substring(index + @versionSearchString.length + 1)
+
+  @dataBrowser: [
+    string: navigator.userAgent
+    subString: "Chrome"
+    identity: "Chrome"
+  ,
+    string: navigator.userAgent
+    subString: "OmniWeb"
+    versionSearch: "OmniWeb/"
+    identity: "OmniWeb"
+  ,
+    string: navigator.vendor
+    subString: "Apple"
+    identity: "Safari"
+    versionSearch: "Version"
+  ,
+    prop: window.opera
+    identity: "Opera"
+    versionSearch: "Version"
+  ,
+    string: navigator.vendor
+    subString: "iCab"
+    identity: "iCab"
+  ,
+    string: navigator.vendor
+    subString: "KDE"
+    identity: "Konqueror"
+  ,
+    string: navigator.userAgent
+    subString: "Firefox"
+    identity: "Firefox"
+  ,
+    string: navigator.vendor
+    subString: "Camino"
+    identity: "Camino"
+  ,
+    # for newer Netscapes (6+)
+    string: navigator.userAgent
+    subString: "Netscape"
+    identity: "Netscape"
+  ,
+    string: navigator.userAgent
+    subString: "MSIE"
+    identity: "Explorer"
+    versionSearch: "MSIE"
+  ,
+    string: navigator.userAgent
+    subString: "Gecko"
+    identity: "Mozilla"
+    versionSearch: "rv"
+  ,
+    # for older Netscapes (4-)
+    string: navigator.userAgent
+    subString: "Mozilla"
+    identity: "Netscape"
+    versionSearch: "Mozilla"
+  ]
+  @dataOS: [
+    string: navigator.platform
+    subString: "Win"
+    identity: "Windows"
+  ,
+    string: navigator.platform
+    subString: "Mac"
+    identity: "Mac"
+  ,
+    string: navigator.userAgent
+    subString: "iPhone"
+    identity: "iPhone/iPod"
+  ,
+    string: navigator.platform
+    subString: "Linux"
+    identity: "Linux"
+  ]
+
+  @check: ->
+    if @browser == 'Chrome' && @version <= 27
+      App.Event.trigger('session:browscheckfailed', {title: 'Error', message: 'Your Browser is not supported!'})
+      return false
+    else
+      return true
+
+      
+
+
diff --git a/app/assets/javascripts/app/lib/app_post/interface_handle.js.coffee b/app/assets/javascripts/app/lib/app_post/interface_handle.js.coffee
index f33a6e352..82d704fd8 100644
--- a/app/assets/javascripts/app/lib/app_post/interface_handle.js.coffee
+++ b/app/assets/javascripts/app/lib/app_post/interface_handle.js.coffee
@@ -44,6 +44,8 @@ class App.Content extends App.Controller
 
           @log 'Content', 'notice', 'execute page controller', route, params
 
+          if !App.Browser.init()
+            return
           # remove observers for page
           App.Collection.observeUnbindLevel('page')