To downgrade to the previous version of Firefox in Hoary:
sudo apt-get install mozilla-firefox=1.0.2-0ubuntu5 mozilla-firefox-gnome-support=1.0.2-0ubuntu5
To downgrade to the previous version of Firefox in Hoary:
sudo apt-get install mozilla- firefox= 1.0.2-0ubuntu5 firefox- gnome-support= 1.0.2-0ubuntu5
mozilla-