It captures the whole page. There is an option preference to always save in a jpg to save file size rather than a png format.

I love this add-on! It is simple, but powerful enough! Great job!

I loved the Pearl Crescent addon before FF57, but WE version is lacking some features:
1) capture the page without visual scrolling ***
2) use hotkey for capturing ***
3) save to Downloads\SUBFOLDER (like Downloads\PageSaver or something user-defined) ***
4) automatic filename increment postfix on name collision (instead of file overwrite) ***
5) some kind of solution to capturing of the fixed elements - for example the fixed footer panel (position:fixed; bottom: 0;) on "https://modnakasta.ua" is repeated on every scroll, instead of being drawn in the actual position (bottom: 0; in this case) or only once (as Screengrab addon does)

The features marked with *** were present in former versions of Pearl Crescent addon and/or are present in current addons from other developers (like mentioned Screengrab addon).

But Page Saver WE works faster on long complicated pages! ;-)

No sirbe!!!

Beaucoup plus compliqué que Pearl Crescent Page Server. Ne permet pas la copie d'une plage sélectionnée.

Juste parfait ! :)

I made the switch to Firefox 55 and the "multiprocess/WebExtensions" and the old Page Saver was keeping me back. I tried so many alternatives and they all sucked. Then I found this one and so far its the best. My only two complains are 1: I wish I could save the screenshots to my desktop instead of the downloads folder and 2: I wish the full page screenshots would work in the background instead of having to wait for the page to scroll and stich them together. Otherwise it seems to work very well! Thank you!

I tested Version 3.0.21 (Last Updated: June 22, 2017)
on Firefox 54.0.1 (32 bit) on Windows 8 with 3.5 GB memory.
It installs Ok.
The first page I tested it on was a small reddit subreddit.
It captured the page and opened a save page dialog to save the capture as a PNG file. This worked.

The second page I tested it on was 4chan's Comic and cartoon catalog, not particularly large with small thumbnails.

This also worked, the webpage is longer at 11000 pixels and I noticed the capture took longer.

Note it captures any hover regions as you would see them yourself when scrolling down a page.

I tested it on four more pages, largest size 2.8 MB, smallest 53 KB.

I've been a long time user of the older Pearl Crescent Page Saver, and was looking for a new saver for my new firefox profiles, and this fits the bill.

EDIT: I further tested changing the File name pattern to "%t %Y-%m-%d-%H-%M-%S" - to get finer-grained timestamps - and this worked.

* can take visible portion
* can take full page
* full page is real full page even if the page has a header area that stays if page is scrolled - many other screenshot tools cannot handle that
* has options to configure

- cannot select regions to be captured (please add this feature)
- no keyboard shortcuts
- page needs to be scrolled (do tue web extension?)

- missing option to capture only a region