User Agent: Mozilla/5.0 (Windows NT 6.1; rv:33.0) Gecko/20100101 Firefox/33.0 Build ID: 20141023194920 Steps to reproduce: Firefox 33.0.1 OS win 7 Just opened some tabs (more than 10) Actual results: it shows black screen on some part of the website or whole screen Expected results: It should display web page without black screen. May be it related to 33.0.1 fix.but still exist 33.0.1: Firefox displays a black screen at start-up with certain graphics drivers

Graphics issue. Type about:support in the location bar and paste the "graphics" section. In addition, could you test with OMTC disabled (about:config > layers.offmainthreadcomposition.enabled = false, restart FF).

Graphics Adapter Description Intel(R) HD Graphics Adapter Drivers igdumd32 igd10umd32 igd10umd32 Adapter RAM Unknown Device ID 0x0102 Direct2D Enabled true DirectWrite Enabled true (6.2.9200.16571) Driver Date 6-27-2013 Driver Version 9.17.10.3223 GPU #2 Active false GPU Accelerated Windows 1/1 Direct3D 11 (OMTC) Vendor ID 0x8086 WebGL Renderer Google Inc. -- ANGLE (Intel(R) HD Graphics Direct3D9Ex vs_3_0 ps_3_0) windowLayerManagerRemote true AzureCanvasBackend direct2d AzureContentBackend direct2d AzureFallbackCanvasBackend cairo AzureSkiaAccelerated 0

Your Intel drivers are outdated, could you update them to the latest version (15.28.22.3517): https://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=23763&lang=eng&ProdId=3319 (it's probably the source of this issue, old drivers) If the issue is stil present, try with OMTC disabled: about:config > layers.offmainthreadcomposition.enabled = false

Still present after driver update Graphics Adapter Description Intel(R) HD Graphics Adapter Drivers igdumd32 igd10umd32 igd10umd32 Adapter RAM Unknown Device ID 0x0102 Direct2D Enabled true DirectWrite Enabled true (6.2.9200.16571) Driver Date 3-20-2014 Driver Version 9.17.10.3517 GPU #2 Active false GPU Accelerated Windows 1/1 Direct3D 11 (OMTC) Vendor ID 0x8086 WebGL Renderer Google Inc. -- ANGLE (Intel(R) HD Graphics Direct3D9Ex vs_3_0 ps_3_0) windowLayerManagerRemote true AzureCanvasBackend direct2d AzureContentBackend direct2d AzureFallbackCanvasBackend cairo AzureSkiaAccelerated 0

Still present after driver update. refer firefox3.jpg Firefox version 33.0.2 Graphics Adapter Description Intel(R) HD Graphics Adapter Drivers igdumd32 igd10umd32 igd10umd32 Adapter RAM Unknown Device ID 0x0102 Direct2D Enabled true DirectWrite Enabled true (6.2.9200.16571) Driver Date 3-20-2014 Driver Version 9.17.10.3517 GPU #2 Active false GPU Accelerated Windows 1/1 Direct3D 11 (OMTC) Vendor ID 0x8086 WebGL Renderer Google Inc. -- ANGLE (Intel(R) HD Graphics Direct3D9Ex vs_3_0 ps_3_0) windowLayerManagerRemote true AzureCanvasBackend direct2d AzureContentBackend direct2d AzureFallbackCanvasBackend cairo AzureSkiaAccelerated 0

Even with OMTC disabled?

Wonder if we're close to OOM, another stage of something like bug 905902.

Going to check with layers.offmainthreadcomposition.enabled = false

Bug stil present with OMTC disabled refer firefox4.jpg and firefox5.jpg Adapter Description Intel(R) HD Graphics Adapter Drivers igdumd32 igd10umd32 igd10umd32 Adapter RAM Unknown Device ID 0x0102 Direct2D Enabled true DirectWrite Enabled true (6.2.9200.16571) Driver Date 3-20-2014 Driver Version 9.17.10.3517 GPU #2 Active false GPU Accelerated Windows 1/1 Direct3D 10 Vendor ID 0x8086 WebGL Renderer Google Inc. -- ANGLE (Intel(R) HD Graphics Direct3D9Ex vs_3_0 ps_3_0) windowLayerManagerRemote false AzureCanvasBackend direct2d AzureContentBackend direct2d AzureFallbackCanvasBackend cairo AzureSkiaAccelerated 0

Since this still happens regardless of whether OMTC is enabled or disabled a regression window would be very valuable. There are instruction for how to do this here: http://mozilla.github.io/mozregression/

Atharvan, do you see the issue with 33.1? If yes, could you install mozregression and find a regression range please.

I don't know if this is the same but I get a black screen sometimes when opening new tabs/windows while Firefox is already running. I have tracked this down to my mouse being within a plugin like Flash while the new instance is running. You can reproduce this by placing a window with Flash content near your Start bar, and using the Start bar to open Firefox. If you move your mouse outside the Start bar into the Flash area and then click the link you will get a black window. If you don't move your mouse outside the start bar into the Flash area the new Firefox instance will start as expected.

Does this still happen with the latest nightly? There were recent bug fixes related to Flash, just wondering if it was the same problem.

I tried to contact the original reporter but the email bounced. Closing this as incomplete.