Review for Filter on Folder Button by John Corliss
Rated 5 out of 5 stars
Buttons work great, but too bad they're fixed. I can move them, but when I restart TB they go back to their original locations. I presume this is an API limitation. Good to have a filter button again though.
This review is for a previous version of the add-on (1.2.0).To create your own collections, you must have a Mozilla Add-ons account.