Sounds more like a system issue than a browser issue. I have no issue skipping through videos on YT. https://www.youtube.com/watch?v=WQ61RL1GpEE

You provide no proof of the issue. How about using OBS to record the issue and then post it on your site of choice. What version of Fedora? What graphics card and driver version? Lan or Wi-Fi? X11 or Wayland? What desktop? What versions of ffmpegs are you running? You should also provide system info.

Operating System: openSUSE Leap 15.6 KDE Plasma Version: 5.27.11 KDE Frameworks Version: 5.115.0 Qt Version: 5.15.12 Kernel Version: 6.4.0-150600.23.47-default (64-bit) Graphics Platform: X11 Processors: 16 × AMD Ryzen 7 PRO 6850HS with Radeon Graphics Memory: 62.1 GiB of RAM Graphics Processor: AMD Radeon Graphics Manufacturer: HP Product Name: HP EliteBook 865 16 inch G9 Notebook PC

Proof of the issue: https://streamable.com/sd9zgn This is a screen recording of a video without a sound from the site https://365.rtvslo.si/ which is the site of a Slovenian National Television

The issue is not present on Youtube but it isn't only present on the site that I made the recording on.

Fedora Workstation 42.

I have a stable Wi-Fi connection.

Wayland.

GNOME.

ffmpeg version 7.1.1.

My system info: AMD Ryzen 7 7735U with Radeon Graphics Memory: 16 GB ASUS Zenbook

Provide a the link to the same video.

I can sklp in this video with no issue. https://365.rtvslo.si/arhiv/tarca/175127114

There are the same problems with the link you provided also on my side. Video stops on the picture I skip.

Did you install rpmfusion repo and the codecs?

https://rpmfusion.org/Configuration

https://rpmfusion.org/Howto/Multimedia

If you're using Flatpak Firefox all you have to install is ffmpeg-full 23.08