Same problem, after trying to remove language-pack-gnome-fr et install again, some package dependency version incoherency with language-pack-gnome-fr-base seems to lock update:
language-pack-gnome-fr: Dépend: language-pack-gnome-fr-base (>= 1:10.04+20110204) mais ne sera pas installé
mozilla ppa was set but removing it and FF5 just downloaded does not solve the issue after being back to lucid current 3.6.18
Same problem, after trying to remove language- pack-gnome- fr et install again, some package dependency version incoherency with language- pack-gnome- fr-base seems to lock update:
language- pack-gnome- fr: Dépend: language- pack-gnome- fr-base (>= 1:10.04+20110204) mais ne sera pas installé
mozilla ppa was set but removing it and FF5 just downloaded does not solve the issue after being back to lucid current 3.6.18