>>Working today for me in Firefox, and it is now giving me no notice of the action.
>>
>>Re: Unable to execute javascript on Web Server Thread #949325 Message #949581
>>
>>This is strange. And probably dangerous from a security standpoint, as it applies to any scripting.
>
>Ok, IAC it shows that the script is good. Good to know it is now working.

Do you have conditions, when to show Copy button? I noticed, that it is now in the message, but not if I expand the thread. In any case, it doesn't work in Opera, so Opera users should not see it.