Hi,
I tried it with the code you given in the above example but still facing the same issue in firefox. For your information, i am using the version 6.1 of cute editor and now it is not possible for us to upgrade with the latest version because we are in the release state of our application(we may upgrade in next release). May be this code you have given as per the latest version of cute editor. Please give some solution as per the version we are using.
Thanks
Davinder