1997802 - Pressing the Play/Pause key on the keyboard does nothing while a video is playing. However, it works fine in Chromium and all other apps.

Status: UNCONFIRMED

(Core :: Audio/Video: Playback, defect, P3)

Description

[Kerr]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:144.0) Gecko/20100101 Firefox/144.0

Steps to reproduce:

Pressing the Play/Pause key on the keyboard does nothing while a video is playing. However, it works fine in Chromium and all other apps, for example.
I use Arch Linux with GNOME Wayland. Firefox version: https://archlinux.org/packages/extra/x86_64/firefox

Actual results:

Pressing the Play/Pause key on the keyboard does nothing while a video is playing. However, it works fine in Chromium and all other apps, video players, for example.

Expected results:

Pressing the Play/Pause key on my keyboard while a video is playing pauses the video, and pressing the same key again resumes playback. On YouTube, for example.

Comment 1

[BugBot [:suhaib / :marco]]

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.

Comment 2

[BugBot [:suhaib / :marco]]

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

For more information, please visit BugBot documentation.

Comment 3

[Jim Mathies [:jimm]]

Media keys related.

Comment 4

[Jim Mathies [:jimm]]

Can you provide some detail about your setup? Maybe post your about:support.

Comment 5

[Kerr]

https://mega.nz/file/OY0ijRqK#6qtDJ7_4k17j8zAUh72kM46OskWTvYwihZOO3kiQ0l8

Comment 6

[Jim Mathies [:jimm]]

Thank you for the report and for providing your system information.

To help narrow this down, could you try the following while a video is playing in Firefox:

1. Open a terminal and run: playerctl play-pause
   (Install playerctl if needed: sudo pacman -S playerctl)

Does that pause/play the video in Firefox? If yes, Firefox's MPRIS service is working and the issue is with how GNOME routes hardware media key events to Firefox specifically. If no, Firefox may not be successfully registering its MPRIS service.

Also, it would help to know if the issue also occurs on the X11 session (if you can test): DISPLAY=:0 MOZ_ENABLE_WAYLAND=0 firefox — this would confirm whether the issue is Wayland-specific.

Finally, please confirm your media.hardwaremediakeys.enabled preference in about:config is set to true.

Comment 7

[Kerr]

media.hardwaremediakeys.enabled is set to true

Comment 8

[Vladimir Kalnitsky]

I noticed the same behavior. In my case the culprit was the Youtube NonStop extension that I have.