1029470 - Full screen video streaming on 2nd display sets 1/3 of screen to black

Status: UNCONFIRMED

(Core :: Plug-ins, defect)

Description

[Stephen M [:ste]]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:30.0) Gecko/20100101 Firefox/30.0 (Beta/Release)
Build ID: 20140605174243

Steps to reproduce:

Using OS X 10.9.3 on a rMBP late 2013 w/ 1080p 2nd Display
Firefox 30 stable
Adobe Flash plugin
Youtube

1. Hook up Mac to a 2nd display
2. Open firefox in the 2nd display (Not OS X Fullscreen)
3. Open streaming site (Youtube) and play video
4. Set video to full screen
5. see footage cropping



Actual results:

When entered full screen, 1/3 of the display (Right side, bottom) cuts to black, cropping out the full screen footage.


Expected results:

Full screen should not crop out the footage

Comment 1

[Stephen M [:ste]]

Any update on this? I will test on the other channels tomorrow

Comment 2

[Stephen M [:ste]]

Attachment: Screen Shot 2014-08-15 at 13.17.52 (2).png

Updated with image example

Comment 3

[Stephen M [:ste]]

Issue still exists on Nightly 34.0a1 (2014-08-15)

Comment 4

[Matthew N. [:MattN]]

Hello Stephen,

Is this a Flash Video that is playing? Right-click on it to see if you see Flash menu items. If so, make sure it's up-to-date: https://get.adobe.com/flashplayer/

Comment 5

[Stephen M [:ste]]

Hi Matthew, It is indeed a flash plugin in I am running the latest build of Adobe Flash

Comment 6

[u279076]

I just tried to reproduce this and cannot. The video scales to full screen almost immediately. I tested on Late-2013 13" rMBP with Mac OS X 10.9.4 and Firefox 34.0a1. I had some trouble finding Flash videos on Youtube (everything I tried played with HTML5) so I went to Twitch.tv instead. Neither the HTML5 videos on Youtube, nor the Flash videos on Twitch.tv exhibited the problem you described.

Can you please provide better steps to reproduce?

Comment 7

[u279076]

It might also be worth trying to see if this reproduces for you in a new Firefox profile. If it doesn't then there might be an add-on or some changed setting that is causing this to happen.

https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode

Comment 8

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

(In reply to Stephen M [ste] from comment #5)
> Hi Matthew, It is indeed a flash plugin in I am running the latest build of
> Adobe Flash

This is a Flash issue.