I tested it and it worked fine. It captured the whole site on just one click. Alas, I need something more complex with a lot of options. This addon is simplistic by design and it works well, but it's not for me.

Requests additional permissions when you try to use it. Need to reload a page after installing.

Positives:
I wanted it to save a copy of a medical page that shows the comparison between 2 medications. One was the better choice for me due to other medical complications I have which I was not told. So I searched for a Firefox Add-on that would take a screenshot of the whole page since my save to PDF messed up the side by side chart. I installed the Page Screenshot, went to the page, clicked the icon and it did exactly as I wanted! So for this I will give 5/5 stars! But then I changed it to 3/5 stars when I looked at the saved result I got..Would have given 1 or 2 stars but at least the whole page was captured even though with the header of the page covering so much text as the add-on scrolls I did get the whole page copied. Made it easier to do mini captures to edit and save the image properly. Please fix so the scroll works properly! *See below for the negatives:

Negatives:
When saving the page https://www.iodine.com/compare/cellcept-vs-myfortic (including the link so that you can try it yourself and see what I mean) the coding in the page conflicts and it splits up. Check the page link to see what I mean. If this review had a screenshot submission to show you the result I would show you. Seems the scrolling makes it split up in bad spots?? I had to do it manually all over again making this addon less than desirable. I was all excited at first. Please fix this. I added the link of the page I had trouble on so that you can see the issue first hand to make it easier to fix. Thank you.

Also.. I wish it saved as .png instead of .jpeg

When the save came up I just changed the extension to .jpg and will see if I can convert to .png later.

Besides set to use JPEG as format, as defautl, it's exporting shots as PNG files, but with *.jpg extension ! This is a mess! I'm obliged to change manually the extension in file name after downloaded. Correct this bug soon!

* only can take full pages
* scrolls the page (do tue being a web extension?)
* result picture contain separators
* no posibility to configure