Why is Firefox mobile's PDF view so bad, while Desktop's is perfectly fine?

boredsquirrel@slrpnk.net to Firefox@lemmy.ml – 44 points –

On Mobile (using Mull) the PDFs are completely pixelated and simply dont render more details. Even after zooming in it takes forever.

Meanwhile on Desktop (Librewolf, Firefox, ... on Fedora) it seems a bit slow compared to Okular, but it is very fine.

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Good hint!

In about:config:

javascript.options.baselinejit true

Still the same, my used PDF

It is likely really the issue that it doesnt render until the whole document is downloaded. This needs to change or at least have a setting.

So I turned JIT off again.

I just tried opening the link in Mull and it is amazingly fast. It takes only 1 sec to render after zooming in or scrolling a lot at once. I'm a bit surprised because the file is 300+ pages. But I do encounter slow PDF loading sometimes, then I download the file and open it in another app

Strange...

I have NoScript and UBlockOrigin installed, disabling both didnt change anything.

Disabling both and enabling JIT didnt change anything. Maybe it is a GrapheneOS issue?

I dont know, I have ublock, but not using the rest