Thank you Marnes. I tried Double Click way back, I guess it got lost in all the updating going on. Anyway, since my gallery downloader is now almost useless, I was looking at other ways to get a series of images, dreading doing Save As until my fingers bled, when I noticed this gem was still around, although with recent Firefox updates it seems to be fighting the tide to stay alive.
Anyway, it just made my afternoon and evening so much more productive, I haven't lost my sanity, and my fingers aren't bleeding. Also, loved your replies to people in the reviews that blame you when it's Firefox changes that upset some of Double Clicks features.
I've had issues with the Hover Button positioning on some direct images, but it's been mentioned at Gitlab and you said you might look into it if time allows. The bottom line is that your time and effort is appreciated by some of us, so 5 stars all the way. Thank you.