Welcome to Firefox for Android Add-ons.
Add extra features and styles to make Firefox for Android your own.
CloseReview for EMail Address Crawler by nhsgary
Rated 5 out of 5 stars
Work perfectly on TB 3.1.12. Lots of options and easy to use. It was just what I needed.
A nice option would be to output to csv, but it's easy enough to export from a new address book.
To create your own collections, you must have a Mozilla Add-ons account.