Created attachment 145173 [details] Firefox with the bug I believe this started happening with Mesa 19.1.5 (I'm not completely sure), I know I can reproduce it with the current mesa git master however. Is this another scissor bug? Please see the screenshot attached and note how the ">" disappears in "Bookmarks Toolbar". Thanks.
My system specs: - Arch Linux (x86_64). - Linux 5.2.9-arch1-1-ARCH - mesa 19.1.5-1 - i3-wm 4.17-1 - Firefox 68.0.2-1
I just found that I can reproduce this with my ThinkPad T450 (it has a broadwell iGPU) and it happens with LLVMPIPE as well (LIBGL_ALWAYS_SOFTWARE=1). So I guess it's not a radeonsi bug.
Looks like this is a Firefox bug, I can reproduce it with the current stable version: 68.0.2-1 and also with firefox-developer-edition 69.0b16-1. I can't reproduce it with the previous stable version: 67.0.4.
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