Open Bug 1900551 Opened 11 months ago Updated 1 month ago

Video stream progress resets when paused on inactive tab on linux

Categories

(Core :: Audio/Video: Playback, defect)

Firefox 126
Desktop
Linux
defect

Tracking

()

UNCONFIRMED

People

(Reporter: daninet90, Unassigned)

Details

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:126.0) Gecko/20100101 Firefox/126.0

Steps to reproduce:

Use Firefox 126 on linux. I'm using rpm version from Opensuse Tumbleweed repo.

  1. I'm starting any video stream. It can be youtube or plex from my own server.
  2. Pause the video stream and go on with your life for an hour. No specific time and I was not able to narrow it to specific action. FF is not closed in the meantime.
  3. When you get back and click on the tab you will notice the progress bar is back to 0:00 without reloading the page. It messes with the youtube progress cookie as well so reloading the page now shows progress at 0:00.
    Debug info: https://pastebin.com/hq0wxNJg

Actual results:

as described

Expected results:

as described

The Bugbug bot thinks this bug should belong to the 'Core::Audio/Video: Playback' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Component: Untriaged → Audio/Video: Playback
Product: Firefox → Core
OS: Unspecified → Linux
Hardware: Unspecified → Desktop

The severity field is not set for this bug.
:jimm, could you have a look please?

For more information, please visit BugBot documentation.

Flags: needinfo?(jmathies)
Severity: -- → S3
Flags: needinfo?(jmathies)

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:129.0) Gecko/20100101 Firefox/129.0

I can confirm I have it on at least both YouTube and Twitch, and sometimes the reset is instantaneous as soon as I pause, sometimes just waiting does it. It happens with or without PiP. I don't see any meaningful trace in the console of those tabs when it happens, so I don't really know where to look.
I'm using KDE/Wayland if it bears any significance.

Some additional info:
I have tested Firefox forks recently, Zen and Libre and those browsers did not have this issue. I have copied my user profile to those browsers as is so same plugins were present. It might suggest this is caused by a setting of the browser but not sure. Since then I have seen it happening multiple times in front of my eyes, the video goes back to 00:00 without page refresh. I'm on version 136 now.

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