Download utility add on

Hi Community,
I am working as a social media manager, and to gather contents from instagram FB and youtube, I have been using a plug in, that has accidentally been deleted, and I cant find it anymore.
Obviously I dont remember its name, all I know the whatever downloadable content it was, a green downwards arrow appeared on the top left corner of it, and when I hovered on it allowed download, and small or high res if applicable. That plug in was just awsome, and I really need it back. Any clues or even plugins to replace would be more than welcome.
Thanks