Not able to share screen with Jitsi web application




2 years ago
4 months ago


(Reporter: zstimi, Unassigned, NeedInfo)



Firefox Tracking Flags

(firefox52 wontfix, firefox53 affected, firefox54 affected, firefox55 affected)


[Affected versions]:
 Fx 55.0a1 (2017-04-03)
 Fx 53.0b8 (beta)
 Fx 52.0.2 (release)

[Affected platforms]:
 Windows 10 x64
 Windows 7 x64
 Ubuntu 16.04 LTS
 Mac OS X 10.11

[Steps to reproduce]:
 1. Launch Firefox.
 2. Go to "" and start a meeting with other user.
 3. Click  screen share button.

[Expected result]:
 The other user have to see the shared screen.

[Actual result]:
 The other user not seen the shared screen.

[Regression range]:
- I will investigate this as soon as possible.
This issue is not a regression since it's reproducible also on Firefox 47.0a1 (2016-02-27), build where screen sharing was first available on Jitsi web app. 
On previous builds, "You have not granted permission to share your screen." error popup was displayed if trying to share screen from Firefox.
Note that screen sharing works correctly on other browsers (eg. Chrome Canary).
Keywords: regressionwindow-wanted
We need the signaling:4,jsep:5 logs from this call (and about:webrtc dump).  Thanks!
Component: WebRTC → WebRTC: Signaling
Flags: needinfo?(timea.zsoldos)
Most likely it's a bug at the jitsi side, but without logs it's hard to know (or get them to fix it if it is)
Rank: 15
Priority: -- → P1
(In reply to Randell Jesup [:jesup] from comment #2)
> We need the signaling:4,jsep:5 logs from this call (and about:webrtc dump). 
> Thanks!

Hello Randell, 

Here is the requested info - .

Please let us know if we can provide any other information related to this bug.
Flags: needinfo?(timea.zsoldos) → needinfo?(rjesup)
Mass wontfix for bugs affecting firefox 52.
status-firefox52: affected → wontfix
The behavior changed here:
- Scenario: One user using Firefox (user 1) and the other Chrome (or Firefox) (user 2)
 - User 1 from Firefox enables screen share, the user 2 from Chrome (or Firefox) will see a grey screen.
 - If user 2 from Chrome (or Firefox) rejoins room, the windows that was shared is successfully displayed.

Also there is no way to stop the screenshare from Fx, when clicking "Start/Stop screen sharing" button again will make the doorhanger from Camera to appear asking for permission again. Allowing the permission will result in breaking the video cam.
Mass change P1->P2 to align with new Mozilla triage process
Priority: P1 → P2
Moving to p3 because no activity for at least 1 year(s).
See for more information
Priority: P2 → P3
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