In Firefox, icons not redrawn correctly when scrolling library

[allDaMedia]

I've consistently had an issue with icons not redrawing correctly, when using Firefox as browser.
It appear to work just fine when using Brave browser.

When I first open a library, all icons are displayed just fine.
But if I scroll down and back up, often times, some (but not all) icons are not redrawn. Only a black box is shown.

I have also noticed the same issue, when editing icons. When browsing the different icons that are available, scrolling down, and back up, leaves some icons blank.

I'm on:
Server version
10.9.11
Web version
10.10.5 (e8e4ff0ca)
Build version
10.10.5

Firefox: 134.0.2

I tried both theme Dark and Blue Radiance, and they both do the same.

Anyone have any idea why this is happening in Firefox?

[TheDreadPirate]

Your server version and web version don't match. I'm assuming you are running Linux and Jellyfin is installed directly on Linux?

What distro? If Debian or Ubuntu (or a derivative), share the output of these commands.

Code:

cat /etc/apt/sources.list.d/jellyfin.sources
sudo apt list --installed | grep jellyfin

[kandykarter]

Silly possibility, but do you have any extensions like uBlock or Dark Reader running? I had some issues similar to yours that were solved by disabling Dark Reader on my Jellyfin subdomain.

[allDaMedia]

Your server version and web version don't match.  I'm assuming you are running Linux and Jellyfin is installed directly on Linux?

What distro?  If Debian or Ubuntu (or a derivative), share the output of these commands.

Code:

cat /etc/apt/sources.list.d/jellyfin.sources
sudo apt list --installed | grep jellyfin

su -c 'apt list --installed | grep jellyfin'
Password:  

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

jellyfin-ffmpeg6/unknown,now 6.0.1-8-bullseye amd64 [installed,automatic]
jellyfin-server/now 10.9.11+deb11 amd64 [installed,upgradable to: 10.10.5+deb11]
jellyfin-web/unknown,now 10.10.5+deb11 all [installed,automatic]
jellyfin/now 10.9.11+deb11 all [installed,upgradable to: 10.10.5+deb11]

cat /etc/apt/sources.list.d/jellyfin.list  
deb [arch=amd64] https://repo.jellyfin.org/debian bullseye main

cat /etc/debian_version  
11.11

I did do an apt update before posting.

I also cleared browser history for the site, but to no avail.

---

Silly possibility, but do you have any extensions like uBlock or Dark Reader running? I had some issues similar to yours that were solved by disabling Dark Reader on my Jellyfin subdomain.

Hmm, I do have dark reader, and that was it. Disabling dark reader for this site solved the issue. It also made the page load much much faster.
Thank you so much for the tip.

[TheDreadPirate]

Code:

sudo apt remove jellyfin-ffmpeg*
sudo apt upgrade jellyfin

Try that.

[allDaMedia]

Code:

sudo apt remove jellyfin-ffmpeg*
sudo apt upgrade jellyfin

Try that.

Thanks. Server version has been updated now.
A bit odd that apt jellyfin upgrade didn't update ffmpeg from v6 to v7 normall?

[TheDreadPirate]

Jellyfin server and web don't have a version number in the package name, but jellyfin-ffmpeg does. jellyfin-ffmpeg6 and jellyfin-ffmpeg7. My understanding is that this is a quirk with how apt works where it won't upgrade jellyfin-ffmpeg because v6 and v7 are entirely different packages due to the naming. But you also can't have both installed at the same time so apt decides to abort the upgrade.