I just added this bug about (i) "firefox*" being available to apt-get
installation within 2012102{1,2} live and installed systems and (ii)
"firefox-l10n-??" being installed instead of "abrowser-l10n-??" in the
automated localization process which succeeds system installation:
https://trisquel.info/en/issues/6638
I filed it as a 5.5 bug because there was no 6.0 option at the moment – the
reason why I don't know if it's desirable to do it; I decided to make it,
though, as it wouldn't be nice to see raw Firefox "slipping" into stable
Toutatis :-)
I noticed no other problems so far.