paste doesn't work in FOE and FF

Hi

My problem is, that since several days I am not able to paste Text in Msg - Windows of Forge of Empires using Firefox 29.0.1 under Windows 8.1 (Flash Player 13,0,0,214 )

The Paste - Function does work in Internet Explorer.

I did a lot of things trying to fix this i.e.:

Uninstalling Firefox and deleting every trace in the registry - and reinstalling FF on another drive.

Clearing Caches and Data in FF

Clearing Caches etc.. in Flash Player

Removing the folders in AppData ...

Still no Effect.

I can Copy in FOE  and paste to notepad ...

I Can Copy and Paste in the Forum Windows

I can NOT paste into Msg - Window or the Invite Friend - Window ....

(all of the functions are available under IExplorer ...)

Any Clue ?

Tnx

Adoels