Okay, i understand the problem... in firefox javascript is not allowed access to the clipboard... you need to click OK on that box and do what the instructions say but change the sites so it's like:
Code:
user_pref("capability.policy.policynames", "allowclipboard");
user_pref("capability.policy.allowclipboard.sites", "http://www.storesonlinepro.com");
user_pref("capability.policy.allowclipboard.Clipboard.cutcopy", "allAccess");
user_pref("capability.policy.allowclipboard.Clipboard.paste", "allAccess");
That should work, there is no major fix for this, as it is just bad scripting... Just out of curiosity, instead of using the context menu then pressing copy try using Ctrl+C to copy, it works fine for me (using the same editor but not on the same site)
Cheers,
Jamey