963515 - Hoovering over a playing quicktime movie shows part of bookmarks bar with HWA enabled

Status: RESOLVED INCOMPLETE

(Core :: Graphics, defect)

Description

[beingalink]

Attachment: Screenshot 2014-01-24 12.29.05.png

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:29.0) Gecko/20100101 Firefox/29.0 (Beta/Release)
Build ID: 20140123030204

Steps to reproduce:

Watch the 30 years apple video on http://www.apple.com/30-years/ . Hoover with the mouse over the playing movie to show the controls.


Actual results:

Below the controls also a part of my bookmarks bar is shown for a short moment (see screenshot attached).


Expected results:

Only the controls should appear.

Comment 1

[dfern]

[bugday-20140127] Windows 7 32 bit Firefox 29.0a1 (2014-01-26) unable to reproduce

Does the bug happen on other Firefox versions?

Do you have certain or a certain number of bookmarks or tabs opened?

Comment 2

[beingalink]

I have 4 pinned tabs and around 5 normal tabs open all the time. But this doesn't have an impact as far as I can tell. The bug seems to be mac specific. I can't reproduce it on my win8 machine either using the current stable version.

Comment 3

[Tiziana Sellitto [:tiziana]]

Thanks for reporting this. 
Can you try if it happens in Firefox safe mode [1] and with a new fresh profile [2]?

[1] https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode
[2] https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles

It works for me on Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:26.0) Gecko/20100101 Firefox/26.0

Comment 4

[beingalink]

Seems like it is not reproducable in safe mode. But if I just manually disable all extensions (in normal mode + restart), the phenomenon is always reproducable. Of course only if the bookmarks bar is enabled.

Comment 5

[beingalink]

I just created a new profile and I could reproduce this behavior after having enabled the bookmarks toolbar and put some bookmarks there.

Comment 6

[Tiziana Sellitto [:tiziana]]

Since this issue does not occur in safe mode most probably the problem is related to a theme or hardware acceleration. Try following the suggestions reported here to understand which is your specific.

https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems#w_the-problem-does-not-occur-in-safe-mode

Comment 7

[beingalink]

It's hardware acceleration. If I disable it in the preferences, this glitch doesn't happen.

Comment 8

[beingalink]

A similar effect can be seen when scrolling down this page http://www.google.de/intl/en/chrome/devices/features/ .

Comment 9

[Paul Silaghi, QA [:pauly]]

I can't repro on FF 29.0a1(2014-02-02), Mac OS X 10.9, AMD Radeon HD 6630

Comment 10

[beingalink]

I'm on a Macbook Core2Duo @ 2Ghz with a Nvidia GeForce 9400M 256 MB. I guess it's a driver bug on Apple's side then.

Comment 11

[Wayne Mery (:wsmwk)]

(In reply to beingalink from comment #10)
> I'm on a Macbook Core2Duo @ 2Ghz with a Nvidia GeForce 9400M 256 MB. I guess
> it's a driver bug on Apple's side then.

Are you using the most recent driver?

Comment 12

[beingalink]

I'm always installing updates, so I'm also always using the latest driver (only apple provides these).

It seems like the original video isn't there anymore but I just tried http://www.apple.com/macbook-air/stickers/#video-stickers and I can't reproduce the problem anymore. I'm on OS 10.10 beta so I don't know if the problem is also fixed for 10.9.

Comment 13

[u597032]

Plugins are no longer supported