Created attachment 370491 [details] XUL wizard + richlistbox When using the attached xul+css files, there are extra lines visible inside and outside the richlistbox. More appear/disappear as you mouse-over or use the arrow keys to change the selection.
Created attachment 370499 [details] XUL + CSS all in one file
So I don't see this at all in a recent minefield nightly on Mac, even running with -chrome as you were when you showed me the bug. Were you using a mozilla-central build, a 1.9.1 build, or something else?
I am using a 1.9.1 nightly, a few days old. I will update to the latest and try again.
I could also imagine it being 10.5-specific if it's related to native-theme stuff somehow; I'm on 10.4.
I am on 10.5.6. I updated to the latest shiretoko nightly, and I still see the problem with the attached sample.
Component: Layout: View Rendering → Layout: Web Painting
Product: Core → Core
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