User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/20100101 Firefox/17.0 Build ID: 20121128204232 Steps to reproduce: I went to http://www.thegoodman.cc/ on Firefox 17 under Windows. Actual results: The browser locked up entirely, changing tabs became impossible, stopping loading became impossible, UI ceased to update and the browser could only be closed with Task Manager. Expected results: The browser should have remained responsive at least, ideally rendering the tab correctly, at worst marking the tab as crashed.

.pat { background-image: radial-gradient(rgba(0, 0, 0, 0.1) 1px, transparent 1px); } causes this problem. likely bug 632324

Hrm, I wonder if 632324 is really the same issue. As that seems to be fixed on nightly with the new Gradient cache. I wonder if for some reason this is having a cache miss in the gradient cache for some reason.

(In reply to Bas Schouten (:bas.schouten) from comment #2) > Hrm, I wonder if 632324 is really the same issue. You're right. With Bug 823147 fixed (tested with http://hg.mozilla.org/integration/mozilla-inbound/rev/d1b79578a1bd) the Site is WFM.

Thanks for the bug report Elliot. WFM with D2D with bug 632324. There's still some bugs that will make it faster when running without D2D.