Hi All,
I use the method "Attachments.ValidateOption.AllowedFileExtensions = "pdf";" to do the filter the pdf file and until the version 3.0.10 of Firefox I hadn't problem with MacOSX. From this version when the ajaxuploader find a file that have two o more point(for example p1.p2.pdf) the ajax uploader don't know tha the file is a pdf and so exclude this file, but this in not a correct way.
Thanks,
-LucaDD