Created attachment 172228 [details] example html A scrollable layer on top of a blurred layer (-webkit-filter: blur() ) will cause the blurred background to bleed through. Check the attached html and screenshot for an example. If the visual artifacts are not immediately obvious, scroll the div a bit. Build Date & Platform: Nightly Build (3 Nov 2012) - Version 6.0.1 (8536.26.14, 537+) Doesn't occur on Windows
Created attachment 172229 [details] example screenshot
*** This bug has been marked as a duplicate of bug 109783 ***