Dark mode for Embedded pdf Viewer

[dpa]

Hello everyone...

I use Firefox a lot of years and i am very happy with the interface.

But i saw that there is no built-in option to change  the Mode of Embedded PDF Viewer in to Dark

Is possible to be implemented in the near Future...?

Thanks in advanced.

[1neStar]

I have a condition that makes it difficult and painful to read black on white and because it's hard to find a PDF reader on PC that has an invert colors feature, I have to read everything on my phone.

I hope Mozilla will one day make Firefox accessible to people with disabilities.

[marco]

@1neStaryou can enable High Contrast Mode to achieve what you ask (https://mzl.la/3NOcnwM).

[gbittu]

Thanks @Fristender - it worked for me too.

[CC2]

Dark/Night mode for in-browser PDF reader?

Greetings,

We already have an extension for toggling dark-mode in Firefox. But these extensions don't work in the built-in browser pdf reader. Can we please have that option available for pdf? 

Thank you.

[Jon]

(Note: similar ideas have been merged into this thread)

[gliding_hk_fm]

@mozzer That worked really well, thanks!
As a side note, I asked ChatGPT to create a toggle-able version of your bookmarklet. Here it is if anyone wants it:

javascript:(()=>{
const el = window.PDFViewerApplication?.pdfViewer?.container;
if(!el) return;
el.style.filter = el.style.filter ? "" : "invert(85%) grayscale(0)";
})();

I'm brand new to Firefox and I'm used to being able to enable the Dark Reader extension for PDFs in Chromium based browsers, so this page was really helpful. Thanks!