Welcome to Firefox for Android Add-ons.
Add extra features and styles to make Firefox for Android your own.
CloseReview for Thumbnail Zoom Plus by karmacowboy
Rated 5 out of 5 stars
Still working for me though I'm not on FF 55. I stayed on 54 until this webextension shite has found a solution.
To create your own collections, you must have a Mozilla Add-ons account.