Yes but my point was not that they must be included but that the width and height attributes must be included in that precise order otherwise the editor will not function correctly in FireFox. 

Please note that in order for the UI to behave properly in Firefox when doing a custom object/embed, the embed must follow the following format:     <embed width='''' height='''' [other stuff]> </embed>   I discovered this after much searching when I found the regex that it validates embed code against is structured ...

The problem seems to stem from an UploadType of flash on the uploader inside the gallery windows.  Changing it to IFrame resolves the problem, however the bottom of the upload dialog that appears in the IFrame is cut off a few pixels.  Ideally I'd like to use the flash upload but if that's not possible is it possible for me to restyle ...

I'm also having the above problem.  I added the key as you suggested but had no success.  This problem only occurs in FireFox and not IE.  I noticed the release date on the AJAX Uploader is about a month later then that of the CuteEditor, is there a known issue with Firefox 3 and the ajax uploader?