1 -Go to this URL: http://www.tvanouvelles.ca/2016/10/23/le-photo-blocker-spray-bel-et-bien-interdit-confirme-la-sq 2- The video start and you hear the sound but the image stay black. Screenshot: http://i.imgur.com/ZqXoUzo.png Tested with a brand new profile under Win7/64 Work Fine in Chrome. N.B.: TVS is the biggest private network channel in Quebec.

Set about:config > dom.ipc.plugins.asyncdrawing.enabled=false as workaround.

Build ID 20161019084923 User Agent Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0 The issue is reproducible on the latest Firefox release (49.0.2) but not on the previous one (48.0.2) on the following: OS: Windows 10 Processor: AMD FX(tm)-8320 Eight-Core Processor(8 CPUs), ~3.5GHz Memory: 16.0 GB Card name: NVIDIA GeForce 210 OS: Windows 10 CPU: Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz (4 CPUs), ~3.2GHz RAM: 16.0 GB Graphics: Intel(R) HD Graphics 530 OS: Window 8.1 Processor: AMD FX(tm)-8320 Eight-Core Processor(8 CPUs), ~3.5GHz Memory: 16.0 GB Card name: AMD 760G It is not reproducible on: OS: Mac OS 10.11 Processor: 2,7 GHz Intel Core i5 Memory: 8.0 GB Card name: Intel Iris Graphics 6100 1536 MB

Request for test with e10s disabled - yes it is reproducible. black for most part, I do see spinner and picture briefly before it blacks out again Windows 10 Home Intel Core i3-4005 CPU @ 1.70GHz 8GB 64 Bit OS / 32bit Firefox Intel HD Graphics Adobe Flash 23.0.0.185 Multi process disabled

It may help to have the about:support graphics section for the systems that show (and don't show) the problem.

Windows 10 Home Intel Core i3-4005 CPU @ 1.70GHz 8GB 64 Bit OS / 32bit Firefox Intel HD Graphics Adobe Flash 23.0.0.185 Multi process disabled Graphics Features Compositing Direct3D 11 Asynchronous Pan/Zoom none WebGL Renderer Google Inc. -- ANGLE (Intel(R) HD Graphics Family Direct3D11 vs_5_0 ps_5_0) Hardware H264 Decoding Yes; Using D3D11 API Direct2D true DirectWrite true (10.0.10586.0) GPU #1 Active Yes Description Intel(R) HD Graphics Family Vendor ID 0x8086 Device ID 0x0a16 Driver Version 10.18.15.4274 Driver Date 8-13-2015 Drivers igdumdim64 igd10iumd64 igd10iumd64 igd12umd64 igdumdim32 igd10iumd32 igd10iumd32 igd12umd32 Subsys ID 19dd1043 RAM Unknown Diagnostics AzureCanvasAccelerated 0 AzureCanvasBackend direct2d 1.1 AzureContentBackend direct2d 1.1 AzureFallbackCanvasBackend cairo Decision Log D3D9_COMPOSITING disabled by default: Disabled by default