Please do add the following configuration to LocalSettings.php for fo.wikipedia.
$wgBabelCategoryNames =
Brúkari %code%-1
Brúkari %code%-2
Brúkari %code%-3
Brúkari %code%-4
Brúkari %code%-5
Brúkari %code%-M
$wgBabelMainCategory =
Brúkari %code%
$wgBabelDefaultLevel = 'N'
Version: unspecified
Severity: normal