webgl set privileged under firefox - show bad or webgl bug ?

[catafest]

I want to test the enable-privileged-extensions under firefox
http://alteredqualia.com/tmp/webgl-maxparams-test/ told me I have:

     WebGL Renderer: Mozilla
     WebGL Vendor: Mozilla
     WebGL Version: WebGL 1.0
     Shading Language Version: WebGL GLSL ES 1.0

     Unmasked Renderer: ANGLE (Intel(R) HD Graphics Direct3D11 vs_5_0 ps_5_0)
     Unmasked Vendor: Google Inc.
 

I add Firefox 50.0.1 vesion  under Control Nvidia Panel to Hight Perform...

The settings of wbgl also I make is:

•  webgl.force-enabled to true.
• layers.acceleration.force-enabled to true
• layers.prefer-d3d9 to false
  

I expected to see something about NVIDIA 740 M but is ANGLE (Intel) my integrated laptop video card.
What is wrong? This is a bug webgl under Firefox?

[Jeff Dash]

You can also check which GPU Firefox will use by navigating to about:support.

We should generally be using the dedicated GPU for WebGL, so it's either a bug in Firefox or misconfiguration of your driver settings.

Since this is an issue with Firefox, you should create a bug at https://bugzilla.mozilla.org/ . If it doesn't end up being a bug in Firefox itself, that's fine.

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[Catalin]

The  about:support told me is active just Intel
but also knows about NVIDIA
GPU #2
Active    No
Description    NVIDIA GeForce GT 740M

I think is need to set Firefox to active GPU2 , right ?

[Catalin]

The firefox told us is not reason to make active GPU2 because will be set into default by resources.

I don't know how , but this is the answer.

This issue is solve for the moment.

Thank you Jeff, I deal with this.