I have used TB for many years. After this latest upgrade, attachments are not working properly. When I create a new message and wish to add an attachment, I click the attach link in the upper right corner and navigate to my scanned documents folder. There I select the scanned document that I wish to attach. And it appear in my message in the attachments box with the correct jpg file ending. Then when I click the attachment to make sure that I have the correct one the Firefox browser opens, even though it is not my default browser,(yes, I checked) with the message file not found and multiple other Firefox tabs that have nothing to do with me. Can anyone explain what is going on??