I want to attach a file to a new message. When I attach it via the button in het message-screen a finder screen will open. The files in here are not up to date. For example, a just added file is not visible. When I brouwse to the same folder by using the Finder itself at this time I will see the up-to-date files and can add them to the message by using drag and drop. So, I have found a solution but I still think this is a bug. See both screenshots, one is the folder "3 metingen" in the Thunderbird finder screen. the second is the same shown in Finder. More and accuate files are visible in Finder. Thanks for your time. Rogier.