Problem with webmail, attachments.

[JSSheridan]

As the subject says, I am experiencing problems using FireFox and attachments with a webmail account I have at go.com. When I send an message with an attached file, the attachment is not sent. Internet Explorer doesn't exhibit this problem when I use it, and I am forced to use it for the time because of this problem. Is it known if the problem is in the FireFox program or the go.com mail server, and is there a way to fix the problem I am having? Thanks for your help.