Welcome to Firefox for Android Add-ons.
Add extra features and styles to make Firefox for Android your own.
CloseDeveloper reply by DW-dev
Rated 4 out of 5 stars
Very nice extension.
Unfortunately it make TB3.1 (Lanikai) hang on opening of a new tab (single message or search result displayed as list).
This problem is fixed in Version 3.3 which works with Thunderbird 3.1.
To create your own collections, you must have a Mozilla Add-ons account.