I do not know if it is the same issue discussed here. I used to have Firefox3beta running correctly in Spanish. After an update via update-manager, firefox has been updated to 3.0~rc1+nobinonly-0ubuntu0.8.04.1 and language-pack-es-base to 1:8.04+20080527.1. After that, firefox does not longer appear in Spanish and I can see that there are no files in /<email address hidden>. I think that in this directory there should be some files provided by the package language-pack-es-base responsible for the translation to Spanish. These files have vanished after the upgrade.
I do not know if it is the same issue discussed here. I used to have Firefox3beta running correctly in Spanish. After an update via update-manager, firefox has been updated to 3.0~rc1+ nobinonly- 0ubuntu0. 8.04.1 and language- pack-es- base to 1:8.04+20080527.1. After that, firefox does not longer appear in Spanish and I can see that there are no files in /<email address hidden>. I think that in this directory there should be some files provided by the package language- pack-es- base responsible for the translation to Spanish. These files have vanished after the upgrade.