Welcome to Firefox for Android Add-ons.
Add extra features and styles to make Firefox for Android your own.
CloseReview for Translate French to English by shoi
Rated 1 out of 5 stars
This extension is advertised as suitable for Thunderbird.
It isn't
Thus hopeless
The same applies to all(?) this contributors extensions.
To create your own collections, you must have a Mozilla Add-ons account.