diff --git a/app/assets/javascripts/app/lib/app_post/browser.coffee b/app/assets/javascripts/app/lib/app_post/browser.coffee
index c6d0f9a06..d9dc3304b 100644
--- a/app/assets/javascripts/app/lib/app_post/browser.coffee
+++ b/app/assets/javascripts/app/lib/app_post/browser.coffee
@@ -30,7 +30,7 @@ class App.Browser
     # define min. required browser version
     map =
       Chrome2: 37
-      Firefox: 32
+      Firefox: 31
       Explorer: 10
       Safari: 6
       Opera: 22