Firefox doesn't allow JavaScript to read or set your clipboard data for security and privacy reasons. When Cute Editor detect clipboard access is disabled, the alert window will show.

 

To enable these functions , you must modify your browser preferences.

 

 

Please check the following articles:

 

http://support.mozilla.com/en-US/kb/Granting+JavaScript+access+to+the+clipboard

 

Regards,

 

Ken