Take full localhost webpage screenshot (Firefox, Windows)?

Question

I need to take a full screenshot of a localhost page I'm working on. Print Screen button offers me no solution to this nor the Alt-Print Screen does, as they take only what is displayed on the screen. I need the shot of the full page.

I tried with some online services and a couple of add-ons for Firefox to no avail since they cannot reach any localhost addess or are not compatible with FF 29.

Is there a way I can achieve this?

Answer 1

I'll answer my own question.

Forget about add-ons. You can do it via the browser's built-in Developer's Toolbar commands.

1. Press Shift+F2 and to bring the toolbar up at the bottom of the screen.
2. Type: screenshot file --fullpage
3. You will be asked for a location to sav your screenshot in .png format (e.g. file.png).

You can also omit the file name if you don't want the image to be saved and rather send it to the clipboard: - screenshot --fullpage --clipboard

Type screenshot help to see more interesting options.