To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!Close
Welcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.Close
Rated 4 out of 5 stars
This is very useful! I frequently receive messages containing deeply nested quotations, so I cannot imagine how terrible if this isn't available. Moreover, this provides extra options for hidden preferences of Thunderbird itself.This review is for a previous version of the add-on (0.2.9).