Review for Toolbar Buttons by Anonym Fegis
Rated 4 out of 5 stars
Good Add-on that I install on every machine that runs T-bird. The add-on lacks some buttons that I would use frequently, like "Run Junk Mail Controls on Folder" and "Run Filters on Folder" (Someone at Google/YouTube sold my email address to Polish spammers. I don't speak Polish)
To create your own collections, you must have a Mozilla Add-ons account.