Issues encountered upgrading with yum from Fedora 16 to Fedora 17

[Bruno Wolff III]

On Sun, Apr 01, 2012 at 00:16:22 -0400,
   Jonathan Kamens <jik at kamens.us> wrote:
>
>For some bizarre reason the Firefox icon disappeared from my 
>favorites. I was able to put it back easily enough by launching 
>Firefox and then right-clicking on it and selecting "Add to 
>Favorites", but I don't think it should have disappeared in the first 
>place. Bug?

I believe this is because the name of the firefox desktop file changed. This 
affected live images. There may be some way to handle this change 
in firefox or gnome.