Bug#801992: Iceweasel 44.0.2-1 has broken icons again

[Gregor Riepl]

> There has not been any activity on the upstream bug[2] in the last three
> months, so I wonder whether a "proper upstream fix" actually exists yet.

It seems there's still no fix, but Michael reverted the change in the latest
package version (2.40.13-3): [1]
----
  * Restore 01_Revert-bgo-520654-Support-export-id-in-rsvg-convert-.patch.
    The upstream patch 30_Don-t-crash-when-filters-don-t-exist.patch addresses
    a different issue, so the revert is still necessary.
----

Building Firefox with that should restore proper icons.

[1]
https://anonscm.debian.org/viewvc/pkg-gnome/desktop/unstable/librsvg/debian/changelog?revision=47359&view=markup