1967052 - WebRTC camera capture breaks when another browser is simultaneously using the same device

Status: UNCONFIRMED

(GeckoView :: Media, defect)

Description

[Lalit Shankar Chowdhury]

Attachment: Screenshot_20250517_080709_Firefox.jpg

User Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36

Steps to reproduce:

1. Open https://mozilla.github.io/webrtc-landing/gum_test.html
2. Start camera capture
3. Switch to another browser and start camera capture
4. Switch between the browsers multiple times

Actual results:

Capture area becomes dark after switching to and from a different browser using the same camera (Chrome in my case)

Expected results:

Capture area should have continued to display live camera feed.

Comment 1

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

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

For more information, please visit BugBot documentation.

Comment 2

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

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

For more information, please visit BugBot documentation.

Comment 3

[Cathy Lu [:calu]]

Can confirm the capture area goes dark.
On another browser (ie Chrome), the feed freezes.