1018593 - OS X fullscreen leaves black stripe on top

Status: UNCONFIRMED

(Core :: Graphics, defect)

Description

[Jonas H.]

Attachment: firefox bug.mp4

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:29.0) Gecko/20100101 Firefox/29.0 (Beta/Release)
Build ID: 20140506152807

Steps to reproduce:

Go to OS X fullscreen.


Actual results:

Sometimes (every 3rd time or so) a horizontal stripe is left black and unused on the very top of the screen (where the menubar is in non-fullscreen mode).

Comment 1

[Paul Silaghi, QA [:pauly]]

The video doesn't work.

Please check if the issue occurs using Firefox in safe mode (with your addons disabled):
http://support.mozilla.com/kb/Safe+Mode

And on a new, empty profile:
http://support.mozilla.org/en-US/kb/Managing-profiles#w_starting-the-profile-manager

Comment 2

[Jonas H.]

> The video doesn't work.

Have you tried mplayer or VLC?

I can reproduce this with a new, empty profile, both in safe and unsafe mode.

I just noticed this is an issue only with my external monitor. Also, in addition to by entering fullscreen on the external monitor screen, I can reproduce this bug by moving Firefox already-fullscreen from my MacBook display to the external monitor.

The screens have different resolution (MacBook: 1440x900, external monitor: 1920x1080)

Comment 3

[Gregory Pappas [:gregp]]

Reporter, are you still experiencing this issue?