tried downloading a bunch of pictures (about 280 pictures from a board) from pinterest. it doesn't save most of the pictures even when you use search level 2 or 3. in fact, it saves a ton of duplicates & website assets. it also slowed down my computer (which is a modern high-spec pc that seldom lags) a lot to the point where i struggled to close firefox & use other apps. when i checked the task manager, i found out that firefox was using 95% of the memory. it usually doesn't use that much memory, so i suspect that it was the extension that was using up almost all of my pc's memory. also, it signed me out of youtube TWICE. not only that, but it signed me out of all of my email accounts. it's very creepy. DON'T USE THIS EXTENSION. it's pretty much useless even without the unprompted signing me out of all of my email accounts & memory hogging anyway. i truly don't understand how this is a recommended extension on firefox.

Exact what i was looking for in terms of functions and also clean, no clutter or nonsens fancy Gfx ui, just perfect.

Very useful add. Sometimes there are small flaws, but overall I give 4 stars

Thank you a lot! You really save my time!

Unfortunately, a website banned me for ten minutes, after I downloaded 500 images in an hour.
Still, I gave five stars because it is the best in what it does.
If you use it sparingly, it should be fine.
The only things that I modified are:
I check "File size" and in the "Min" field I write 40000.
To have the icon in the toolbar, click "Extensions" (in the toolbar), then the gear on the right of this extension, then "Pin to toolbar".
To use it, click on its icon, then wait until the progress bar stops moving. It never reaches the end. It stops one millimiter sooner. Then click "Save". Then "OK". The images will be in a directory with the name of the website. In a zip file.

Prior to selecting the images to download in the "gallery", there is no option to arrange them by resolution and easily choose the highest quality ones.