Welcome to Firefox for Android Add-ons.
Add extra features and styles to make Firefox for Android your own.
CloseReview for Duplicate This Tab by retrovertigo
Rated 4 out of 5 stars
Exactly what I was looking for!
One update would be great though: an option to change the short code to merge windows - Ctrl + Shift + M - as this is used by the Firefox Developer Tools to switch to "responsive Design Mode"
To create your own collections, you must have a Mozilla Add-ons account.