Welcome to Firefox for Android Add-ons.
Add extra features and styles to make Firefox for Android your own.
CloseReview for AutoCopy by Alan Holman
Rated 5 out of 5 stars
Updated review: 4 or 5 stars
I've now got this working on TB3 (thanks to other reviewers here) and it's brilliant and hugely useful.
Annoying that you need to edit the files rather than just installing it automatically, but hopefully that will get updated soon.
To create your own collections, you must have a Mozilla Add-ons account.