Steps To Reproduce: 1. Logout face book if you have logged in 2. Open https://www.facebook.com/media/set/?set=a.191631997662897.1073741825.100004482936043&type=1&l=07095dc466 --- observe photo image 3. Reload(F5) if any --- observe photo image Actual Results: Black rectangle appear/disappear on photo image during page load. Expected Results: Not blink Regression window(m-i) Good: https://hg.mozilla.org/integration/mozilla-inbound/rev/165c3fd176ec Mozilla/5.0 (Windows NT 6.1; WOW64; rv:35.0) Gecko/20100101 Firefox/35.0 ID:20141001112720 Bad: https://hg.mozilla.org/integration/mozilla-inbound/rev/d954ed24e795 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:35.0) Gecko/20100101 Firefox/35.0 ID:20141001113823 Pushlog: https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=165c3fd176ec&tochange=d954ed24e795 Suspect: Bug 902952 Graphics -------- Adapter Description: ATI Radeon HD 4300/4500 Series Adapter Drivers: aticfx64 aticfx64 aticfx32 aticfx32 atiumd64 atidxx64 atiumdag atidxx32 atiumdva atiumd6a atitmm64 Adapter RAM: 512 ClearType Parameters: Gamma: 2200 Pixel Structure: R ClearType Level: 50 Enhanced Contrast: 200 Device ID: 0x954f Direct2D Enabled: true DirectWrite Enabled: true (6.2.9200.16492) Driver Date: 4-29-2013 Driver Version: 8.970.100.1100 GPU #2 Active: false GPU Accelerated Windows: 1/1 Direct3D 11 (OMTC) Subsys ID: 00000000 Vendor ID: 0x1002 WebGL Renderer: Google Inc. -- ANGLE (ATI Radeon HD 4300/4500 Series Direct3D9Ex vs_3_0 ps_3_0) windowLayerManagerRemote: true AzureCanvasBackend: direct2d AzureContentBackend: direct2d 1.1 AzureFallbackCanvasBackend: cairo AzureSkiaAccelerated: 0

Regression window with force enable Direct2D1.1 user_pref("gfx.canvas.azure.backends", "direct2d1.1,direct2d,skia,cairo"); user_pref("gfx.content.azure.backends", "direct2d1.1,direct2d,cairo"); user_pref("gfx.direct2d.use1_1", true); Inlocal build Last Good: 20e97c8496e4 First Bad: 7b9201731195 Triggered by 7b9201731195 Matt Woodrow — Bug 1046550 - Part 3: Use Direct2D 1.1 when preffed on. r=bas

[Tracking Requested - why for this release]:

Another one for Bas to triage/investigate.

Looks like this is fixed by the patch in bug 1085187.

I cannot reproduce the problem on the following m-i build. https://hg.mozilla.org/integration/mozilla-inbound/rev/0c50940fd16d Mozilla/5.0 (Windows NT 6.1; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0 ID:20141029154215 I can verify that bug 1085187 fixes this problem.