1226181 - Fullscreen notification appearing on and on when focus is shifted through monitors

Status: RESOLVED DUPLICATE of bug 1196588

(Firefox :: General, defect)

Description

[Bogdan Maris, Desktop Test Engineering]

Affected OS's:
- Windows 7 64-bit
- Windows 10 64-bit
- Ubuntu 14.04 32-bit

Don't have a Mac with dual screen but I think it also reproduces there as well.

Affected builds:
- Firefox 43 beta 4
- latest Developer Edition 44.0a2
- latest Nightly 45.0a1

STR:
1. Start Firefox on one screen [A]
2. Visit any video (HTML5) https://www.youtube.com/watch?v=tRlmP6xWdw0
3. Enter fullscreen
4. Focus another app or desktop from second screen [B]
5. When the fullscreen notification dissappears focus the video from screen [A]

Expected results: Notification does not show up again.

Actual results: Notification shows up each time the focus is changed from one screen to the other.

Notes:
- This is not a recent regression, it reproduces even with the old design from an old Nightly (2015-08-02).
- In comparison, fullscreen notification from Chrome and Opera does not behave like this.
- Not sure of the intended behavior here so requesting info.

Comment 1

[Bogdan Maris, Desktop Test Engineering]

Xidorn, do you know (or know someone who knows) if this is the intended behavior or not?

Comment 2

[Xidorn Quan [:xidorn] UTC+10]

It is expected behavior currently. There are some discussions in bug 1196588 but I don't see consensus yet.