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Printing in landscape orientation and page sizes

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Firefox has been good to me and i love it. Been using it as my primary web dev browser but it has increasingly been brought to my attention the need for better CSS Print media implementations. I would love to know how I can set the page to be printed in landscape orientation via CSS. Also is it possible to set page sizes via CSS?

Firefox has been good to me and i love it. Been using it as my primary web dev browser but it has increasingly been brought to my attention the need for better CSS Print media implementations. I would love to know how I can set the page to be printed in landscape orientation via CSS. Also is it possible to set page sizes via CSS?

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Firefox doesn't support setting the size property for @page (per https://caniuse.com/#feat=css-paged-media ), so you can't specify orientation or paper size in Firefox. However, in my view, there's no harm using these features for users of Chrome/Opera/Edge while we all wait.

Of course, if layout is critical, you may want to consider generating PDFs for your site visitors.