STR: 1. Load http://static.davidchouinard.com/congress/ 2. Try to interact with the animation or the browser UI. RESULT: Firefox janks. The UI responds a little bit about every 10 seconds. The Gecko profiler says the main thread spends about 60% of its time in argb32_image_mark_argb32(). I'm running OS X 10.9 on a Retina MacBook Pro. http://people.mozilla.org/~bgirard/cleopatra/#report=8da903867d536427935fbe1c5e6361f5ed26c3aa
You need to log in before you can comment on or make changes to this bug.