User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0 Build ID: 20150305021524 Steps to reproduce: No apparent cause, happens completely at random. Actual results: The screen will flash briefly, anywhere from a fraction of second to a full second, with green, red and or black lines and shapes (i.e. rectangles, triangles, basic squares with added 45-90 angles). Sometimes the entire window goes black with green or red lines/shapes overlayed. So far It's happened mostly in the upper left corner, although have seen it once in upper right. Happens completely at random, extremely fast and nothing I've done indicates I can manually recreate the process. Problem started occurring recently (maybe around 03/12/2015). Happens so quickly I can't possibly screenshot it. Expected results: More like what SHOULDN'T have happened, and that's the bug I am reporting! :)

Should add I am also using Windows 10 Technical Preview build 9926.

Also, it appears to be strictly a graphical corruption, as absolutely nothing seems effected by the glitch, firefox continues to operate normally otherwise.

That smells graphics issue, maybe driver incompatibility with Win 10. Honestly, as Win 10 has not been released yet, don't expect any fix if it's a Firefox issue, because many bugs from Win 10 will be fixed before its release date. Could you paste the "graphics" section from the page about:support please.

Graphics Adapter Description AMD Radeon R9 200 Series Adapter Drivers aticfx64 aticfx64 aticfx64 aticfx32 aticfx32 aticfx32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64 Adapter RAM 3072 Device ID 0x679a Direct2D Enabled true DirectWrite Enabled true (10.0.9926.6) Driver Date 11-20-2014 Driver Version 14.501.1003.0 GPU #2 Active false GPU Accelerated Windows 1/1 Direct3D 11 (OMTC) Subsys ID 00000000 Vendor ID 0x1002 WebGL Renderer Google Inc. -- ANGLE (AMD Radeon R9 200 Series Direct3D9Ex vs_3_0 ps_3_0) windowLayerManagerRemote true AzureCanvasBackend direct2d AzureContentBackend direct2d AzureFallbackCanvasBackend cairo AzureSkiaAccelerated 0

Is it the latest driver provided by AMD to work with Win 10?

Yes, the driver was recieved through windows updates and works flawlessly with all games, videos, flash, etc.

Just experienced a brand new glitch and screenshot it this time. You can check it out here: http://imgur.com/UVEcd3z

Got a screen shot of another glitch, this is more akin to the one I first mentioned: http://imgur.com/S5hdTXk

Yeah, typical AMD driver issue.

We should keep an eye out for similar bugs, and see if they are specific to Windows 10.