Review for Tag Toolbar / Tag Popup by cenciofarre
Rated 4 out of 5 stars
I have found it very handy. One problem, though, is that I lose all my labels on a message if I delete an attachment. A nice feature to have would be the ability do a search for tagged messages just by clicking the tags.
This review is for a previous version of the add-on (0.7.10).To create your own collections, you must have a Mozilla Add-ons account.