User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:44.0) Gecko/20100101 Firefox/44.0 Build ID: 20160123151951 Steps to reproduce: 1. Watch any videos on Youtube or Facebook. Take this one as a test: https://www.youtube.com/watch?v=-YGDyPAwQz0 or this https://www.facebook.com/afvkids/videos/1096171280441507/ 2. (Youtube) Click on the gear icon and change the quality to 480p or 360p or 240p Actual results: The video are lagging and jumping (or whatever it called). It does not happen when i change the quality to 720p, 1080p and above. Please watch this video: https://www.youtube.com/watch?v=yODsfAxZYQs Expected results: Smooth playback on lower quality below 480p
This bug was started after 41 update. It is happen on any computers. If you are unable to reproduce the bug, please run a PC games, such as World Of Warcraft. let it running in the background and try reproduce the bug again. It is NOT a graphic card or driver's problem because it is not happen on any browsers. no matter how much GPU usages, the playback is still smooth. I don't want to disable the hardware acceleration because it will just slow down browsing
Anyone can reproduce this issue?
Is it reproducible in nightly?
Much perf is better in nightly 49.