Rated 5 out of 5 stars

If somebody has the problem that dimming unloaded tabs does not work anymore with UnloadTab and TreeStyleTab then add this to the userchrome.css

tab[pending] {
opacity: .4 !important;
}

Instead of .4 you can take a different value.

This review is for a previous version of the add-on (0.24.5.1-signed).  This user has a previous review of this add-on.