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A comment on Firefox 86.0. Parent comment

Re:Firefox 86.0 by bradstewart on Friday February 26, 2021 @09:54AM (#26275334)
Wow. I switched to Firefox around the same time I switched a Mac for work, and just assumed the lack of print preview was a weird macOS thing.

This makes me happy.

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Re:Firefox 86.0 by jwatt on Friday February 26, 2021 @10:15AM (#26275548)
Actually, you were correct. Firefox on Windows and Linux has provided a print preview "since forever", but this is the first time Firefox has had print preview functionality on macOS (outside of using the system print dialog to generate and open a PDF in the Preview app).
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Re:Firefox 86.0 by bradstewart on Friday February 26, 2021 @10:21AM (#26275618)
Right. I just assumed Chrome and Safari also lacked print preview on macOS, didn't even think to check.
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Re:Firefox 86.0 by lucideer on Friday February 26, 2021 @09:58AM (#26275377)
fwiw Firefox always had a print preview; it was just behind a different shortcut rather than integrated into the default flow.
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Re:Firefox 86.0 by frosted-flakes on Friday February 26, 2021 @10:29AM (#26275700)
The old Print Preview actually allowed you to inspect the page with the Developer Tools. Which was great for debugging print-specific CSS. I don't think that's possible with the new Print Preview, but the new one is better in every other way.
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Re:Firefox 86.0 by folknor on Friday February 26, 2021 @02:19PM (#26278668)
Should be possible using the Browser Toolbox to inspect the entire interface? I just checked and the HTML is definitely in the inspector at least, but I'm not sure what your requirements are.
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Re:Firefox 86.0 by lights0123 on Friday February 26, 2021 @04:33PM (#26280079)
What do you mean by "Browser Toolbox"? Firefox doesn't have Chrome's @media (print) emulation.
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Re:Firefox 86.0 by folknor on Saturday February 27, 2021 @03:16PM (#26287760)
https://developer.mozilla.org/en-US/docs/Tools/Browser_Toolb...

The Browser Toolbox is the normal DOM inspector, just extended to the whole user interface. If you open the print preview, then open the Browser Toolbox, you can inspect the preview and edit styles just like any other document.

Also, @media print {} works fine, I just tested it. But I'm not sure how that relates to the original question.

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Re:Firefox 86.0 by folknor on Saturday February 27, 2021 @03:24PM (#26287820)
https://imgur.com/a/S6XryYW screenshot of browser toolbox with the print preview DOM visible + site with @media print background color change. Note that you need to expand "More settings" in the print preview and enable "Print backgrounds" for that specific test to work.
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Re:Firefox 86.0 by bradstewart on Friday February 26, 2021 @10:17AM (#26275578)
I would have literally never discovered that without this post. I honestly forgot there was a File->Print button until I read this. Ctrl/cmd+P is jus burned into my muscle memory.
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