896734 - the 'about:blank' page is black, and flash applets sometimes make the entire browser black too

Status: RESOLVED INCOMPLETE

(Core :: Graphics, defect)

Description

[Wxcafe]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:21.0) Gecko/20100101 Firefox/21.0 (Beta/Release)
Build ID: 20130511120803

Steps to reproduce:

debian testing 64 bits, amd ati fglrx graphics driver
1. open an about:blank page
2. go to any website with a flash applet


Actual results:

1. the about:blank page is black 
2. some flash applets go black while running, then the entire browser turns black (including the adress bar, etc. The whole window)


Expected results:

1. the 'about:blank' page should be white
2. flash applets just shouldn't do that.

Comment 1

[Wxcafe]

this is the result of my about:support - graphics section

Graphics 
Adapter Description        ATI Technologies Inc. -- AMD Radeon HD 7800 Series 
Device ID                  AMD Radeon HD 7800 Series 
Driver Version             4.2.12217 Compatibility Profile Context 12.104
GPU Accelerated Windows    1/1 OpenGL
Vendor ID                  ATI Technologies Inc.
WebGL Renderer             ATI Technologies Inc. -- AMD Radeon HD 7800 Series 
AzureCanvasBackend         cairo
AzureContentBackend        none
AzureFallbackCanvasBackend none

also, i checked dmesg and i've got lots of this kind of errors :
[42056.971501] <3>[fglrx:firegl_apl_loadDatabase] *ERROR* APL: apl initialize fail.
(might be unrelated to firefox)

Comment 2

[Manuela Muntean [Away]]

Could you please try the following, to see if you still reproduce the issue :

1) try this with a clean profile: http://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles

2) running in Safe mode: http://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode

Also, you could update your GPU driver and your Flash.

Comment 3

[Wxcafe]

So, 

- with a clean profile, the bug is not present.
- in safe mode, the bug is not present.

- my flash plugin and GPU driver are the last versions.

So i guess there's something wrong with my plugins/configuration.
But i still don't know what.

Comment 4

[Manuela Muntean [Away]]

If you can't reproduce the bug neither with a clean profile, nor in safe mode, there is a high chance that one or more add-ons might be causing the problem.

You could try disabling your add-ons one by one, until you find the culprit.

Comment 5

[Wxcafe]

After disabling all add-ons, the bug still appears.
It seems that the add-ons are not responsible.

Comment 6

[u597032]

Flash is no longer supported