1903558 - Fenix and Nigtly suffer from lost file handle <fileUpload.files> if tab goes background

Status: NEW

(Firefox for Android :: WebExtensions, defect)

Description

[44xtc44]

Attachment: bugDescription.zip

Steps to reproduce:

Extension 'Playlist Booster' and mini setup https://github.com/44xtc44/Bug-FireFoxAndroid-file-handle load media files. <input type="file" ...
Play() media and go to wikipedia.

Actual results:

If tab goes background play stops, wikipedia in forground.
If tab comes in front play() refuses also.
Seen in Android Studio Emulator AVD 13.5 Freeform API 30 and Samsung A136B
with nightly 129 and fenix 127
'Playlist Booster' shows media warning and 'resource not suitable' error after tab hides in remote debugger. File handles are lost. FF windows has not such a pb.

Expected results:

Locally loaded media should play if the tab of origin is in background.
Or at least play if in foreground again.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

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

For more information, please visit BugBot documentation.

Comment 2

[Arturo Mejia [:amejia]]

Hi QA team!
Could you help to test bug?

Thanks in advance!

Comment 3

[Vasilica Tamas (Android QA) [:vtamas]]

Attachment: audioissue.mp4

I was able to reproduce this issue on Firefox Nightly 130 (2024-07-09), Firefox 129 Beta 1 and Firefox 128 using a Samsung A32 with Android 13. I installed the PlaylistBooster (https://addons.mozilla.org/en-US/firefox/addon/playlistbooster/?utm_source=addons.mozilla.org&utm_medium=referral&utm_content=search) addon and loaded a locally stored mp3 file. The audio don't stop when the Fenix app is sent to background, but it stop when the focus is switched to another tab and after returning back the audio can no longer be played. Confirming that this issue is not reproducible on desktop side.