FireShot could just as well have been called "SureShot". Works every time, except in certain protected pages as explained in the instructions. There are very few of those, and there are workarounds. For those of you familiar with Safari's "Export to PDF" feature, it is about the same, from the user point of view. Love this extension. Try it. You will probably like it.

God, very god page screenshot

I usually use Snag-It for screenshots on my MacBook Pro, but occasionally Snag-it won't capture a scrolling webpage. That's when I turn to Fireshot, and it has never failed me.

Good

Misleading description, without pro subscription it behaves like default firefox screenshot app.

great addon, very useful, recommended

Brillant. Easy. Very, very effective – best screenshot tool in the known universe.

Offers to capture as PDF with embedded links, but quietly redirects those link to their "buy our software" page. I don't mind folks asking me to buy their freely-provided products, at all. But when a company subverts important functionality without mentioning it, then I simply can't trust them anymore.