>>> My Info: Win7_64, Nightly 49, 32bit, ID 20160526082509 STR_1: 1. Open url  in a new tab 2. Drag and drop tab from Step 1 to downloads toolbarbutton to save the image (avoid bug 1202798) 3. Click the toolbarbutton to open downloads panel, click on the downloaded file to open it AR: Downloaded file has no extension, therefore Win7 has no idea what it is. It doesn't open file ER: Downloaded file should have appropriate extension, as if I used Ctrl+S to save that image Note: I constantly encounter this bug on Google Images, because usually first ~10 images are data: images >  data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABwAAAAcCAYAAAByDd+UAAAAJklEQVRIie3NMREAAAgAoe9fWls4eAzMVM0xoVAoFAqFQqFQ+C9chp4NHvu+4Q4AAAAASUVORK5CYII=
Dragging a tab to the downloads button should either do nothing, or be equivalent to a request to save the page. This is likely an edge case though, so I don't think we should work on it right now.
Status: UNCONFIRMED → NEW
Ever confirmed: true
Priority: -- → P5
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