/usr/share/perl5/Jifty/ is in libjifty-plugin-authentication-facebook-perl 0.90000-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/Jifty/Plugin/
/usr/share/perl5/Jifty/Plugin/Authentication/
/usr/share/perl5/Jifty/Plugin/Authentication/Facebook/
/usr/share/perl5/Jifty/Plugin/Authentication/Facebook.pm
/usr/share/perl5/Jifty/Plugin/Authentication/Facebook/Action/
/usr/share/perl5/Jifty/Plugin/Authentication/Facebook/Action/LinkFacebookUser.pm
/usr/share/perl5/Jifty/Plugin/Authentication/Facebook/Action/LoginFacebookUser.pm
/usr/share/perl5/Jifty/Plugin/Authentication/Facebook/Dispatcher.pm
/usr/share/perl5/Jifty/Plugin/Authentication/Facebook/Mixin/
/usr/share/perl5/Jifty/Plugin/Authentication/Facebook/Mixin/Model/
/usr/share/perl5/Jifty/Plugin/Authentication/Facebook/Mixin/Model/User.pm
/usr/share/perl5/Jifty/Plugin/Authentication/Facebook/View.pm