1535539 - Mute/Unmute context menu option is not working by following specific steps

Status: NEW

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

Description

[Timea Zsoldos [:zstimi/tzsoldos], Desktop Release QA]

Attachment: mute_unmute.gif

[Affected versions]:
Firefox 60.6.0esr
Firefox 66.0
Firefox 67.0a1

[Affected platforms]:
Windows 10 x64
Windows 7 x64
macOS 10.13.4
Ubuntu 18.04 x64

[Steps to reproduce]:

1. Launch Firefox.
2. Access the following link:
   http://www.metadecks.org/software/sweep/audio/demos/beats1.ogg
3. Play the audio.
4. Mute the audio from sound button bar by pulling the button from right to left.
5. Access the context menu from audio bar to unmute the audio.

[Expected result]:
Mute/Unmute the audio from context menu should been working even if the audio was muted by pulling the sound bar button to the left.

[Actual result]:
The sound button shows mute, context menu mute/unmute item not working.

[Regression range]:
This seems to be a regression. I will come back with a regression range asap.

[Note]:
Please see the attached screencast.

Comment 1

[Bryce Seager van Dyk (:bryce)]

Could you please NI me once you find a regression range, or if you're unable to find one? This looks like it may be a UI issue, but if we're able to pin down a regression range that will better help us identify the cause.

Comment 2

[Timea Zsoldos [:zstimi/tzsoldos], Desktop Release QA]

I investigated this issue with mozregression, but it seems builds all the way back to Firefox 46.0a1 are affected so I don't think this qualifies as a regression, so I will remove the 'regressionwindow-wanted' keyword.

Comment 3

[Daniel Kolsis]

Reproduced on latest Nightly 73.0a1 (10.12.2019) on Windows 7.

Comment 4

[Clara Guerrero]

Hi,
I've tested this using the latest Nightly version 74.0a1 (2020-01-13) (64-bit) for Ubuntu 18.04.3 LTS and I’m able to reproduce the issue. Based on this I will mark firefox74 flag as affected.
Best,
Clara