When this works, its wonderful. I use it to filter out 'Suggested' and 'Sponsored' posts in my Facebook thread. That being said, its currently no longer filtering the 'Sponsored' posts. It seems like that filter hasn't been updated in quite some time. Hopefully it will be looked at and tweaked soon.

Matt Kruse should be running Facebook's UI/UX department but sadly all he can do is give us this brilliant extension to make using FB less painful; and thank god for that!

Finally, an add-on that works automatically and is almost completely customizable. They even have a support group on Facebook if you have questions.