Rated 5 out of 5 stars

Finally! The Firefox tags are actually useful! Without the functions that this add-on delivers, they'd always seemed rather a waste of space to me. Now that I have this, I may actually start bookmarking things locally again, instead of just relying on 3rd party sites to store them all for me. This add-on actually does a better job with tags than many of those 3rd party sites, actually, because it allows you to combine them freely, winnowing down your choices until you're left with a specific enough sample. That's the best way to use tags, IMO, but surprisingly few places are actually set up for it.Thank you for taking this project on, and for doing such a great job of it (and it's a relief to know that it will be good with 4 as well, when I finally get around to upgrading; thanks for all your hard work on this).

ETA: And I only now noticed that it allows search with *set operators.* Wow. Just...wow.

This review is for a previous version of the add-on (4.2.8).