Welcome to Firefox for Android Add-ons.
Add extra features and styles to make Firefox for Android your own.
CloseReview for Thunderbird Message Filter Import/Export Enhanced by knownbad
Rated 4 out of 5 stars
Export -> Tools -> Message Filters -> lower right Export Filters.
Import -> Tools -> right below Message Filters -> Import Filters.
To create your own collections, you must have a Mozilla Add-ons account.