1581292 - Firefox opens multiple channels in audio mixer but does not remove them when closed

Status: RESOLVED DUPLICATE of bug 1430907

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

Description

[John King]

Attachment: Aantekening 2019-09-14 110559.png

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:69.0) Gecko/20100101 Firefox/69.0

Steps to reproduce:

Reopen Firefox with multiple tabs. for each tab a new channel is added in Windows Audio Mixer.

Actual results:

When closing Firefox the audio channels stay visible in Audio Mixer. And when Firefox is reopened new channels are added to audio mixer

Expected results:

Upon closing Firefox the channels should close as well.

Comment 1

[Andrei Purice]

Hello,
I can reproduce this bug on all versions of Firefox : release 69, beta 70.0b7 and Nightly 71.0a1 (2019-09-17) on Windows 10.
I will set a component for it but if you feel like it's incorrect please change it to one more appropriate.

Comment 2

[John Lin [:jhlin][:jolin]]

Chunmin, could you please have a look or know who would be the proper person to check it? Thanks!

Comment 3

[C.M.Chang[:chunmin]]

Unfortunately, I cannot reproduce it on my Win 10, both on Firefox Nightly (71.0a1 (2019-10-11) (64-bit)) and Firefox Release (69.0.3 (64-bit)), so it's hard to know what happens.

John, Andrei, do you have any specific audio settings ?

Comment 4

[Andrei Purice]

Hey Chunmin,

No, I didn't have nor do I have any speficic audio settings. No extra programs or extensions either. Just what Windows 10 offeres by default.

Comment 5

[Paul Adenot (:padenot)]

Andrei, if you close the tabs and wait some time, possibly doing about:memory -> Minimize memory usage, do they go away?

Comment 6

[Paul Adenot (:padenot)]

Also I thought we used a specific Windows API to only expose a single volume slider to users?

Comment 7

[Alex Chronopoulos [:achronop]]

Andrei, did you have a chance to check the question from Paul in comment 5? Thank you.

Comment 8

[mozyrev]

Hello. Had the same problem. Windows 10 x64, Firefox 72.0.2 (64-bit) with no extensions
Noticed Firefox sliders in volume mixer after at least 2 days of having browser closed, so "close the tabs and wait some time" part didn't seem to work for me.
"about:memory -> Minimize memory usage" made the sliders go away, thank you very much.

Comment 9

[Andrei Purice]

Hello,
Sorry for my late response as i've been away.
The issue still occurs for me on Nightly version 75.0a1 (2020-02-12), beta version 74.0b2 (64-bit) and release 73.0 (64-bit) using the same repro steps provided by John King.
However as Paul suggested, if you close the browser (or the tabs) and wait about 1 minute the mixer comes to normal and all the extra sliders disappear.

Comment 10

[Matthew Gregan [:kinetik]]

Same issue as bug 1430907, which has patches to fix the remaining issues with this.