Bugs are tracked in Xfce Bugzilla.
Getting started with bug tracking in Launchpad.Ubuntu also tracks bugs for packages derived from this project: xfce4-cpu-freq-plugin in Ubuntu, xfce4-cpufreq-plugin in Ubuntu, xfce4-governor-plugin in Ubuntu.
Bugs are tracked in Xfce Bugzilla.
Getting started with bug tracking in Launchpad.Ubuntu also tracks bugs for packages derived from this project: xfce4-cpu-freq-plugin in Ubuntu, xfce4-cpufreq-plugin in Ubuntu, xfce4-governor-plugin in Ubuntu.