As good as it gets! This Add-On includes all needed elements to directly handle PDF documents available in the net.

Addendum:
An additional useful feature could be to have a look at the fonts which are used (and probably embedded) in the viewed PDF as in most standalone PDF viewers.

Far superior to the Adobe Acrobat Official which can't leave you alone to do what you planned on doing. (Read the document.) This is straightforward, what one expects, from a document viewer. Thanks much!

The Addon has been workign great but im going for 4 stars as its suddenly stopped working. I'm using Floorp and am unsure if this is dur to a floorp update or microsoft update. Hope this can be patched

Can I just say awesome? I've tried 'Dark PDF' extensions before which are limited and finnicky at best. The benefit of customizable PDF rendering schemes which WORK to make it both dark AND readable, or beige/sepia, or back to white, packaged as a subtle built-in feature of the default PDF reader for the browser is amazing. Totally underrated and single-handedly makes me glad to be using Firefox over Chrome.

Extremely helpful & awesome extensions.

Is there an option to restore original pdf name instead of the addon name?

It's a great extension, thank you so much!, I was searching for this long time ago!, thank again!

aww thank you so much for this! i have like a hundred scihub tabs and i'm kinda too lazy to have to download them all so this is a total lifesaver (and eyesaver ^^)
i'd like to ask if there's a way to make the reader itself dark mode, like normal firefox's?

I love it! thank you so much for making this extension!