User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:34.0) Gecko/20100101 Firefox/34.0 Build ID: 20141126041045 Steps to reproduce: Create circular button using input(submit) or button element with border-radius: <button style="width:100px; height:100px; border-radius:50%;">Round button</button> You can add hover style on button for better visual understanding. Actual results: Clicking on corner (of bound box) where no visual element and you are clicking on button, but visual you click on background. Expected results: Click should go through rounded corner and not hit button.

https://hg.mozilla.org/integration/mozilla-inbound/rev/bac36f6e728f https://hg.mozilla.org/integration/mozilla-inbound/rev/5f7211d4190d

Backed out for B2G desktop failures. https://hg.mozilla.org/integration/mozilla-inbound/rev/1a8b874719fb https://treeherder.mozilla.org/ui/logviewer.html#?job_id=4817378&repo=mozilla-inbound

I retriggered the test ~50 times on non-B2G platforms and they were all green, so it seems to be a B2G issue. The changed code is cross-platform. So I disabled the test on B2G for now: https://hg.mozilla.org/integration/mozilla-inbound/rev/542e2960e4d0 https://hg.mozilla.org/integration/mozilla-inbound/rev/a2f90950d072

https://hg.mozilla.org/mozilla-central/rev/542e2960e4d0 https://hg.mozilla.org/mozilla-central/rev/a2f90950d072