I really like FireShot, simply due to the fact that it's reliable and it doesn't capture the annoying overflows that some webpages might have. As a frontend-dev I can snap a screenshot with FireShot and send it over to a friend without having to explain the "random white bars". I can only recommend this extension!
And this is only for the regular version. Maybe one day I'll have enough money to spend it on the Pro version to be amazed even more.
Keep up the good work, guys 'n girls!

Doesn't work at all. Didn't capture images, didn't get the full page. Most of the key features seem to be Windows-only (why?)

This tool is vital for proper screenshots of web pages and web applications. I develop/design webpages and web apps mostly in React.js, and the built-in screenshot function of Firefox simply does not work with React.js. It only captures what is loaded on the first section of the screen. This tool actually goes through the entire page and then screenshots it. I love it, 5 starts for sure, and I have donated what I can as well.

Great extension, offers a lot options for the screenshots

Das Addon reagiert seit dem letzten Update nicht mehr!

It used to work perfectly. Since lsat week, however, I am unable to save anything more than an image of the one visible screen, regardless of what menu option I select.
It will no longer save longer pages, or save text in a form that I can OCR.
Is there a help feature?

muy bien hasta el momento.

GENIOUS:: save where U want as PNG / JPG or PDF, entire page, visible part or capture selection
THANKS a lot!!!

Super Screen Tool mit PDF und Bild-Dateiformaten zur Auswahl

best screenshot add-on I've tried so far! Having trouble getting the additional features after buying a subscription, but that's probably because I'm not the most tech-savvy.

Muy buena herramienta. La utilizo para crear pantallazos de un proyecto en particular. Se puede definir que el nombre del archivo corresponda ocn el nombre de la página, lo cual ahorra tiempo.

Je n'aime pas émettre un avis négatif... Cette application serait bien voire très bien... il y a un bug quand je l'utilise. Je ne peux faire une copie écran qu'une seule fois ! je dois fermer Firefox pour pouvoir faire une 2ème copie écran. Je ne sais pas pourquoi ? donc je le désinstalle malheureusement.
(j'utilise la version gratuite).
Vu les autres avis c'est une application qui fonctionne...
Bonne journée !

I have used FireShot for about 2 years and really like it. I upgraded to the professional version and use it frequently.

Perfect tool. Every button and function makes total sense. Thanks for the great add on.