I'm running Firefox on a Xvfb in a VPS. What I want to do is to take a full page screenshot of the page.
I can redirect Firefox to particular page using
firefox http://google.com
and take a screenshot (inside X) using ImageMagick
import root -window output.jpg
The problem is, most of the page need scrolling and I can't know the height beforehand.
The other way is to pick a very big height (like 4000px) and then process the image and remove the useless part. But that's unnecessary processing.
I found many Firefox add-ons, but I'm looking for a solution that can be programmed using the Shell Command line.
Edit: I ended up writing my own FireFox extension for doing this.
The Developer Toolbar GCLI and Shift+F2 shortcut were removed in Firefox version 60. To take a screenshot in 60 or newer:
:screenshot
or :screenshot --fullpage
Find out more regarding screenshots and other features
For Firefox versions < 60:
Press Shift+F2 or go to Tools > Web Developer > Developer Toolbar to open a command line. Write:
screenshot
and press Enter in order to take a screenshot.
To fully answer the question, you can even save the whole page, not only the visible part of it:
screenshot --fullpage
And to copy the screenshot to clipboard, use --clipboard
option:
screenshot --clipboard --fullpage
Firefox 18 changes the way arguments are passed to commands, you have to add "--" before them.
You can find some documentation and the full list of commands here.
PS. The screenshots are saved into the downloads directory by default.