To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
CloseWelcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.
CloseReview for Filter Button by Bruce A. Johnson
Rated 5 out of 5 stars
I appreciated this add-on when it was working (before Thunderbird 68), and now miss it.
This review is for a previous version of the add-on (1.1.0).To create your own collections, you must have a Mozilla Add-ons account.