1178212 - Favicon shortcuts should not unconditionally squash icon down to 16x16

Status: NEW

(Firefox :: Shell Integration, defect, P3)

Description

[James Ross]

In bug 753021, Firefox was made to generate Windows URL shortcut icons as a 48x48 image with the favicon squashed down to 16x16 in the centre.

While I have seen this behaviour occasionally in testing in IE, the normal behaviour is to use the full icon if it has a suitable large version. The icon I'm using has 48x48 and 16x16 so it may need >32x32 or it may just need >16x16.

Firefox should not unconditionally squash the favicon down to 16x16.

I'll provide a test page and icon later today.

Comment 1

[Masatoshi Kimura [:emk]]

Definitely. The squashed icon is almost invisible in the details view.

Comment 2

[Masatoshi Kimura [:emk]]

The .url IconHandler is doing something special for http:// favicons. Since we can't install/override the icon handler, we will have to create an .ico file with multiple sizes.

Comment 3

[Mark Rousell]

In my testing for Bug 1178132 just now I noticed that, in all the Firefox/Windows 10 combinations I tested, the generated icon was the large size (48x48 I think).

It looks like this bug has been fixed (at least for Windows 10 64 bit).

Comment 4

[Masatoshi Kimura [:emk]]

Yes, this is almost fixed by bug 1293043. But if the site has only a 16x16 icon, shortcut favicon is still smallish in the details view. So I didn't close this bug.