can not totally disable WebGL?

[googlefan]

Hello, I have everything related to WebGL in about:config turned off but it still seems to work because the terminal (I run Palemoon from the CLI) is flooded with messages like

Code: Select all

WebGL(0x7f1154929800)::ForceLoseContext
WebGL(0x7f115492a000)::ForceLoseContext
WebGL(0x7f1154a5d000)::ForceLoseContext
WebGL(0x7f1154a5d800)::ForceLoseContext
WebGL(0x7f115ae55000)::ForceLoseContext
WebGL(0x7f115ae55800)::ForceLoseContext
WebGL(0x7f115bd8f000)::ForceLoseContext
WebGL(0x7f115bd8f800)::ForceLoseContext
WebGL(0x7f115c248800)::ForceLoseContext
WebGL(0x7f114dc0c800)::ForceLoseContext
WebGL(0x7f114dc0d000)::ForceLoseContext
WebGL(0x7f114f22b800)::ForceLoseContext
WebGL(0x7f114f22c000)::ForceLoseContext
WebGL(0x7f11503a2800)::ForceLoseContext
WebGL(0x7f11503a3000)::ForceLoseContext
WebGL(0x7f115119a000)::ForceLoseContext
WebGL(0x7f115119a800)::ForceLoseContext
WebGL(0x7f1151fdb000)::ForceLoseContext
WebGL(0x7f1151fdb800)::ForceLoseContext
WebGL(0x7f1152272800)::ForceLoseContext
WebGL(0x7f1152273000)::ForceLoseContext
WebGL(0x7f1154b51000)::ForceLoseContext
WebGL(0x7f1154b51800)::ForceLoseContext
WebGL(0x7f114dceb000)::ForceLoseContext
WebGL(0x7f115102e800)::ForceLoseContext
WebGL(0x7f115102f000)::ForceLoseContext
WebGL(0x7f11511b6800)::ForceLoseContext

My changes to the defaults:

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webgl.disabled;true
webgl.disable-wgl;true
webgl.disable-extensions;true
webgl.enable-webgl2;false

How do I disable the WebGL completely, once and for all?

[therube]

Try, webgl.disable-angle;true.

[googlefan]

Try, webgl.disable-angle;true.

It is disabled already, I've missed it when was copying other modified values, also I have non standard value

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webgl.disable-DOM-blit-uploads;true

[Moonchild]

I looked into this a little; it's actually a bit of a misnomer as it's part of DOM canvas, and while WebGL rendering might be disabled, parts of the plumbing (context) would still be active and being called from canvas methods.
That said, these messages to the console should not be enabled by default and it's something we've inherited from Mozilla. This kind of spew belongs in debug builds, not release builds. I'll get rid of it in normal builds.