User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:37.0) Gecko/20100101 Firefox/37.0 Build ID: 20150402191859 Steps to reproduce: Display attached HTML-file with version 37.0.1 version Firefox Actual results: Top and bottom <option> in <select> element does not rendered, but you can select them and they will be rendered. If you change selections option disappear Also it is easy to see problem during scrolling select element If delete one of style declared in HTML-file everything rendering correctly Expected results: Top and bottom options should be rendered correctly as it was in previous versions

I'm seeing all the options rendering fine on Mac, so likely to be a graphics issue...

It can be reproduced on follow OS Windows 7 x64 Windows 8 x64 It cannot be reproduced on: Windows XP Ubuntu 14.04

Confirmed on Windows 7, Firefox 38.

regression range http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=14665b1de5ee&tochange=2399d1ae89e9 which includes http://hg.mozilla.org/mozilla-central/rev/d954ed24e795 Bug 902952 - Part 2: Use Direct2D 1.1 where available. r=jrmuizel Setting gfx.direct2d.use1_1 to false fixes the bug.

Guessing the border-radius makes us attempt draw subpixel AA text to transparent parts of the layer, which we shouldn't do (and d2d is the most strict about enforcing it).