$summary
Well, this might be not so trivial as you seem to assume. While on mozilla 2.0 branch there's already a gio backend, it hasn't been backported even to 1.9.2 branch yet and as mozilla devs focus on 2.0 branch, backports are rather slow. http://hg.mozilla.org/releases/mozilla-2.0/rev/2572312e17df http://hg.mozilla.org/releases/mozilla-2.0/rev/0c9a366b7e5d http://hg.mozilla.org/releases/mozilla-2.0/rev/a43e2f7eda8f As you may notice, those checkins are about a year old. On the other hand, https://bugzilla.mozilla.org/show_bug.cgi?id=611953 is quite recent and still in the works.
Until 2.0 is officially in the tree not much we are gonna do, we will not backport for the 1.9 branch.
