Review for Track Package by binba
Rated 5 out of 5 stars
This add-on was so nifty and useful, it made me sign up just to post the review :-)
Simple, does what it's supposed to be, that's what it takes to get 5 stars.
My only missing feature: add support to use the app via the search engine bar, for tracking numbers that aren't in a web page.
To create your own collections, you must have a Mozilla Add-ons account.