the best one i ever used

Just the best web screenshot add-on to me.

For taking full-page screenshots, this program is fantastic! It allows screenshots from URLs and other features but I haven't tried them.
The interface is very clear and structured. Simple and effective. You can save as an image or PDF, copy to the clipboard, or print. A must-have.

Son los mejores!

Works great for my ESL students. I can capture and print an image of their Kahoot scores to share with them.

Anda perfecto y simple para lo que se necesita

This works exceedingly well; I especially like that it saves the visual representation in a PDF (unlike trying to "print" it to a PDF). Recommended.

This thing is just great!

What a great extension! I use Fireshot almost daily and am grateful for its ability to capture really long passages of text.

Mi piace, è utile, funziona bene. Peraltro la versione gratuita offre molto. Spero che non venga utilizzata per scopi illegali

Fireshot isn't perfect, but it's darn close. I'm saving a bunch of websites to PDFs and haven't found anything else that works as well or as easily. I had to install a (free) add on program to get it working well for the URLs I needed to save. The extension will tell you if and when you need the add-on and handle almost everything to make it happen.

One teeny-tiny glitch: there's an option to automatically save the result to PDF. The resultant PDF started fine but turned into a "redacted" version about halfway through. So I use a two step process: Step 1: Process and save. Step 2: Convert to PDF.

There's also some glitchiness in susbox's add-on description. There's some html in it that Firefox didn't process properly and left as html. (That won't make sense to most of you, but the net is that you should just ignore parts of the description that look strange.)

I'm a (now retired) professional programmer. This application is really spiffy and I'm impressed.