This extension grabs images from Facebook Comments
(WARNING: This project is currently unmaintained & appears to no longer work as expected with the latest realization of Facebook comments)
Sick of downloading images one-by-one from Facebook Comments? ImGrab has a solution.
Just click the icon while viewing the images in your active tab and ImGrab will buffer them all to a popup. From here, you can now click to instantly download the images or choose "Window View" to browse in a new window.
No more downloading lecture notes one JPEG at a time! No more sorting and renaming them in your Downloads Folder. ImGrab's got your back. Go on, try it.