Created attachment 8827351 [details] stack Found by bughunter and reproduced on latest m-c tinderbox debug build on windows. Steps to reproduce: -> Load http://www.simulationcurriculum.com --> Crash debug trunk windows only it seems so far. xidorn could you take a look or do you know who could take a look ?
This seems to be in gfx code, no? I'm not familiar with that part. Probably as milan?
https://crash-stats.mozilla.com/report/index/84c7781a-6a37-43b5-9b9c-b08c22170117 seems to crash opt builds too
I tried in my windows machine and I cannot reproduce this issue. :Tomcat, could you post your about:support information? Thanks.
This crash was caused by BasicCompositor change introduced in Bug 1323797. Reproducing it requires that layers hardware acceleration is turned off: layers.acceleration.disabled=true. I have a fix for this crash in a duplicate Bug 1331894.