How to drag and drop Gmail attachments.
Let’s say you have an email open containing an attachment. Hover your mouse over the attachment’s “Download” link or its file icon and a tooltip appears that says: “Click to view OR drag to your desktop to save."
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Simply click and hold, then drag your cursor to anywhere in your file system that you want to save the file. Release the mouse button, and voilĂ ! Your attachment is saved (for large files, you may see a progress dialog).
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