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Firefox used to let you save a screenshot of the full web-page via the Developer Toolbar:
https://darkoshi.dreamwidth.org/629515.html
(By the way, if you accidentally tried that from the toolbar shown in the Web Console instead of the Developer Toolbar, it didn't work, and showed an error, "SyntaxError: missing ; before statement".)
The Developer Toolbar has been removed in version 63 of Firefox:
https://bugzilla.mozilla.org/show_bug.cgi?id=gcli-removal
https://www.ghacks.net/2018/05/21/firefox-62-developer-toolbar-removal/
So now you can save a screenshot from the Web Console; but you need to include a colon (:) in front of the command:
:screenshot --clipboard --fullpage
See:
https://www.ghacks.net/2018/08/27/screenshots-from-the-firefox-developer-tools-console/
In the Web Console settings, you can also select the "Take a screenshot of the entire page" option under "Available Toolbox buttons", to get a Web Console toolbar button for taking a screenshot. Using that button, rather than saving the screenshot to the clipboard, automatically saves a PNG image in the Downloads folder.
https://darkoshi.dreamwidth.org/629515.html
(By the way, if you accidentally tried that from the toolbar shown in the Web Console instead of the Developer Toolbar, it didn't work, and showed an error, "SyntaxError: missing ; before statement".)
The Developer Toolbar has been removed in version 63 of Firefox:
https://bugzilla.mozilla.org/show_bug.cgi?id=gcli-removal
https://www.ghacks.net/2018/05/21/firefox-62-developer-toolbar-removal/
So now you can save a screenshot from the Web Console; but you need to include a colon (:) in front of the command:
:screenshot --clipboard --fullpage
See:
https://www.ghacks.net/2018/08/27/screenshots-from-the-firefox-developer-tools-console/
In the Web Console settings, you can also select the "Take a screenshot of the entire page" option under "Available Toolbox buttons", to get a Web Console toolbar button for taking a screenshot. Using that button, rather than saving the screenshot to the clipboard, automatically saves a PNG image in the Downloads folder.