Firefox 57 / Quantum: emulate print styles

Question

How can I emulate the media type "print" in the new Firefox Quantum dev console?

Tried to enable it somehow and searched the documentation but couldn't find any hints!

Marqueritemarques

Possible duplicate of Faster way to develop and test print stylesheets (avoid print preview every time)? – Klayman

@Marqueritemarques Would you mind switching the accepted answer to my answer below? The currently accepted answer is not up to date anymore, and I have provided the new correct answer below. – Anthracene

Answer 1

[UPD] this console has gone starting from v62. But after some time toggle button for switching into Print mode is available in DevTools again. Please check another answer below(unable to delete accepted answer)

I thought it's impossible. But suddenly have found answer in another topic:

1. press Shift + F2 to get special browser console
2. type "media emulate print"
3. hit "Enter"

That's it.

Hydr

thanks! on the mac it is shift + fn + F2 to get to this "special" console :) – Marqueritemarques

This console has been removed since Firefox 62. There is no way how to emulate print media type now, AFAIK. – Acculturate

WTF Mozilla? Why would you remove this? – Adlar

@KyleO While I lament it as well, they had good reasons. It was not being maintained and allowances for the code to remain/continue working was blocking other necessary changes/features. – Adkinson

The answer is not valid – Benedicite

@Nazar VynnytskyI once you untick "Accepted answer" mark, I'll be able to delete it – Hydr

The Firefox documentation for the Browser Console states that the Browser Console command line is disabled by default but lists a few ways it can be enabled. – Jamijamie

Answer 2

Print style emulation can be toggled from the styles panel in the Inspector in the Developer Tools. It's in the toolbar at the top of the styles panel, the little page icon (toggled active in the screenshot):

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History

After the GCLI (Developer Toolbar) has been removed, the feature is now once again available in the latest nightly version of Firefox. As of May 2019, this has not yet landed in the current stable release (66), but it is available in the current Developer Edition and the Nightly Channel (68.0a1 and above).

Update August of 2019 (v68)

Version 68 has landed in the stable release channel, so the feature is now available in all Firefox distributions.

Anthracene

Thanks for this small icon :) – Benedicite

Oh God... I need at least 3 hours to find this... Come on Moz.. you wasting someone time for... argh... – Giulia