[Bug 2047262] Re: Firefox stopped inhibiting screensaver on video playback

[Eugene San]

** Summary changed:

- Firefox stops inhibiting screensaver after opening/un-suspending two or more tabs with video playback
+ Firefox stopped inhibiting screensaver on video playback

** Description changed:

+ Update (02/2024):
+ With Firefox 122 on Ubuntu-Mate 23.10, screensaver/powermanager inhibition is completely broken even with Mozilla's .deb package.
+ 
  After a fresh start of firefox, screen saver is blocked properly when
  playing video but after opening/un-suspending a few tabs with video,
  inhibition stops working.
  
  I was unable to come up with reproducible scenario but after a few hours
  of browsing it usually stops working. Restarting firefox fixes the
  problem.
  
  The bug first appeared around August and affects both .deb and snap
  packages.
  
  Tested on Ubuntu-Mate 22.04.3, Xorg, both Pulseaudio and Pipewire (if that's relevant).
  I don't see any relevant msgs in xsession-errors or system logs.

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https://bugs.launchpad.net/bugs/2047262

Title:
  Firefox stopped inhibiting screensaver on video playback

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