User Agent: Mozilla/5.0 (Windows NT 5.1; rv:33.0) Gecko/20100101 Firefox/33.0 Build ID: 20141011015303 Steps to reproduce: In about: config I tried to turn on the webgl.force-enabled as true. webgl.msaa-force as true. layers.acceleration.force-enabled as true. gfx.direct2d.force-enabled as true. layers.offmainthreadcomposition.enabled is false webgl.disabled;false Actual results: WebGL does not work at all on pages that use it.For Firefox 32 WebGL working properly Expected results: I would like to WebGL worked

Please post the graphic section from about:support / (alt key)/help/troubleshoot information

Driver Date 12-23-2013 GPU #2 Active false Vendor ID 0x1002 Device ID 0x68be GPU Accelerated Windows 1/1 Direct3D 9 (OMTC) Adapter Description AMD Radeon HD 5700 Series RAM adapter Unknown WebGL Render Google Inc. -- ANGLE (AMD Radeon HD 5700 Series Direct3D9 vs_3_0 ps_3_0) Adapter Drivers ati2dvag Driver Version 9.0.100.9001 windowLayerManagerRemote true DirectWrite Enabled false (0.0.0.0) AzureCanvasBackend skia AzureContentBackend cairo AzureFallbackCanvasBackend cairo AzureSkiaAccelerated 0

Same problem here. Here is my computer specs (in brazillian portuguese). I have also faced this problem in another computer, running Ubuntu 14.04. Informações básicas sobre o aplicativo -------------------------------------- Nome: Firefox Versão: 33.0.1 User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:33.0) Gecko/20100101 Firefox/33.0 Janelas multiprocesso: 0/1 Gráficos -------- Data do driver: 11-26-2012 Descrição do adaptador: Intel(R) HD Graphics Direct2D ativo: true DirectWrite ativo: true (6.3.9600.17111) Drivers do adaptador: igdumd64 igd10umd64 igdumdx32 igd10umd32 GPU #2 ativa: false ID do dispositivo: 0x0046 ID do fornecedor: 0x8086 Janelas aceleradas pela GPU: 1/1 Direct3D 11 (OMTC) RAM do adaptador: Unknown Renderização WebGL: Google Inc. -- ANGLE (Intel(R) HD Graphics Direct3D9Ex vs_3_0 ps_3_0) Versão do driver: 8.15.10.2900 windowLayerManagerRemote: true AzureCanvasBackend: direct2d AzureContentBackend: direct2d AzureFallbackCanvasBackend: cairo AzureSkiaAccelerated: 0

Same issue on Windows 7 with ATI X1400 about:support Adapter Description ATI MOBILITY RADEON X1400 Adapter Drivers atiumdag atiumdva atitmmxx Adapter RAM Unknown Device ID 0x7145 Direct2D Enabled Blocked for your graphics driver version. Try updating your graphics driver to version 10.6 or newer. DirectWrite Enabled false (6.2.9200.16571) Driver Date 2-10-2010 Driver Version 8.593.100.0 GPU #2 Active false GPU Accelerated Windows 0/5 Basic (OMTC) Blocked for your graphics driver version. Try updating your graphics driver to version 10.6 or newer. Vendor ID 0x1002 WebGL Renderer Google Inc. -- ANGLE (ATI MOBILITY RADEON X1400 Direct3D9Ex vs_3_0 ps_3_0) windowLayerManagerRemote true AzureCanvasBackend skia AzureContentBackend cairo AzureFallbackCanvasBackend cairo AzureSkiaAccelerated 0 Tried webgl.force-enabled as true, but still no dice. Used many webgl apps with FF32 and earlier.

Firefox updated to 34.0.5 and now WebGL is working again. Please close this as FIXED

Sorry I spoke too soon. WebGL is no longer giving any errors, but the content is not being displayed in FF34. See Bug 1109708 Interestingly, things like the webGL conformance test still run and FPS counters still work. It's just the output that's missing.

Closing, since the content not being displayed properly is a separate bug.