I tried to screenshot a long web page, it did seem to screenshot the whole page, but cannot the load the sceenshot for downloading.

As a web dev guy, this is what I use for detailed explanatory screenshots for my clients. It has lots of useful tools and some cool effects. You can even select and move text and shapes freely. Luv it!!!

Would be "awesome" if it included all visible elements, such as options from a <select> element that is open when the screenshot is taken.
It doesn't, so it's one of many "mediocre" ones.

just awesome

Requires some sort of account to record video

Pretty excellent screen shot tool. Doesn't get a full five stars because on really, really long pages the capture tool will freeze and crash. Overall my go-to however.

3-30-25:: freezes your computer because it cannot handle large pages. Takes a long time to select the portion of the page you want imaged and is unreliable in that regard. No excuse for an addon to require reboot because it overloads your computer. BAD programming
2--25: same a time consuming PITA to use
6-12-24: The only thing awesome about this screen saver is the amount of time you spend trying to get it to select the part of the screen you selected. Works about 25% of the time. Rest of the time you spend trying to get it to work right. Another joke addon "recommended" by mozilla, yeah RIGHT.

Works about 60% of the time. Tries to sell you on a different program when you try to use it. Freezes your windows computer when trying to capture large page requiring hard reboot then-no throttling or limits on memory consumption resulting in stalled machine. When it works it works well, too bad that doesn't come close to 100%

account required to screen record, would give 0 stars if i could

Works better on the Chrome version, Firefox UI is outdated.

5-9-25; Unreliable slow servers and a PITA to use it.
Freezes your computer w/out warning can't deal with larger pages. Slow to call up SLOWWWW to transfer data. Takes an inordinate amount of time to TEACH the server what do screenshot. Should change awesome to Pathetic.
4-24-25: A time waster for sure.
Count on spending an inordinate amount of time trying to get it
to properly select the part of the page you want saved.that plus frequent computer seizing cuz can't handle larger pages and is extremely slow.
3-27-25: See how it freezes up your computer? requiring reboot? Isn't that AWESOME?? see how you waste your time trying to get it to select correct partial images? see how SLOWW it is?awesome alright awseomely BAD
3-7-25: The only thing awesome about this addon is how slow it is and how much time u will waste trying to get it to select partial images.
1-27-25: good time waster trying to teach it how to load the segment you want. Slow.
SLOWWWWWWWW.
5-12-24: they have a convoluted and time consuming method of selecting portions of a page that does not work many times, so you waste a lot of time trying to get it to work properly. Can't handle large pages, freezes system, sometimes requiring hard reboot. No way to easily report bugs. down to one star, would give 0 if possible. FFox must be hard up for programmers to recommend crap extensions like awesome. Want to waste your time trying to get this script kiddie pos addon to work, then install it. Can't handle browser zoom settings, can't select proper portion of page. Waste a lot of time trying to get this POS addon to work. Obviously the "developers" don't know shyt.
Mozilla should hold a contest because there ARE NO good scrren savers extensions for it.
11-7-23: Clips the image so download is incomplete. SLOWWWWW. Freezes computer on long pages with no progress bar.
In windows 8.1 when capturing a large page, it runs roughshod on your memory and your computer will freeze up often requiring a reboot. Does not work on portable browsers that are not integrated into your OS. Slow to load, run and save an image.

It saves my time. Really helpful.

This extension requires an account and therefore a registration to use it.
Go away!