Review for Save Images by Miki Miska
Rated 4 out of 5 stars
It would be great for JPG files, when saving, there could be an option to populate EXIF data (for example URL of the image)
I also miss single image save (clicking directly on image with right click)
This would require modifying the "image" itself, which is beyond the scope of the add-on.
Saving the image with right click has never been part of "Save Images". You can save the image that is under the mouse cursor but it requires pressing a shortcut key that you have defined.
To create your own collections, you must have a Mozilla Add-ons account.