Re: [EXPLAINED] iceweasel 3: favicon while tab is loading

[Hugo Vanwoerkom <hvw59601@care2.com>]

Hugo Vanwoerkom wrote:
> Hi,
>
>
> In sid's iceweasel 3 I notice a difference with iceweasel 2:
>
> when a tab is loading the favicon shown would slowly rotate in version 
> 2, but in version 3 it stays stuck at the beginning.
>
> Searching bugzilla.mozilla.org I find nothing under "favicon", but it 
> clearly is a visible but minor bug.
>
> Anybody else notice this behavior?


I filed a bug:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=487411

It was answered right away by Mike Hommey:

The most probable reason is that the new icon is an APNG, which 
iceweasel 3 doesn't recognize, while firefox does. APNG is a torture of 
the PNG standard, that was rejected by the PNG group, and official 
libpng is probably not going to include APNG support for a while. 
Firefox uses a bundled and heavily patched libpng, which we can't for 
maintenability reasons.

So that explains it.

Hugo