I usually check the latest add-ons updates and additions over at addons.mozilla.org. Since their aren’t any dates on this page for the add-ons I don’t know if the add-ons I am looking at are ones that I’ve seen before. It would be nice to have the update date next to the add-ons so one can instantly see when it was updated. This would make it unnecessary to open each add-on to see what the date is.