1327844 - Firefox doesn't save extension of data: image when I drag it to downloads button

Status: NEW

(Firefox :: File Handling, enhancement, P5)

Description

[arni2033]

>>>   My Info:   Win7_64, Nightly 49, 32bit, ID 20160526082509
STR_1:
1. Open url [1] 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

> [1] data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABwAAAAcCAYAAAByDd+UAAAAJklEQVRIie3NMREAAAgAoe9fWls4eAzMVM0xoVAoFAqFQqFQ+C9chp4NHvu+4Q4AAAAASUVORK5CYII=

Comment 1

[:Paolo Amadini]

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.