Rated 5 out of 5 stars

by Firefox user ff2ea0 on Nov. 15, 2017 ·

PLEASE, please, please update this for Firefox Quantum. The ability to crop page previews with javascript is invaluable to me for keeping track of sites for work - losing this has made my life today a misery. I know there is an alternative, but while it looks good it doesn't hold a candle to the functionality of this version.

Oh and if you've suddenly and unexpectedly found yourself with Firefox Quantum (as I did), there is no way you can import the old dials. More misery.