Reproducible with: - Firefox 36 Beta 8 - BuildID: 20150209164123 - latest Firefox 37 Aurora (with YouTube Flash Player 1.2) - BuildID: 20150211004833 NOT reproducible on: - latest Firefox 38 Nightly (with YouTube Flash Player 1.2) - BuildID: 20150211222327 Reproducible on: Windows XP x86 Steps to reproduce: 1. Open Firefox and go to https://www.youtube.com/ and open a video. 2. Make sure Flash is used (use the YouTube Flash Player 1.2 add-on to force flash if needed). 3. While the video is playing right-click outside the video area. 4. Hover the top row with navigation icons while the video is playing. Expected results: Hovering elements of the context menu should have no effect on the video framerate. Actual results: Hovering elements of the context menu causes a drop in the video framerate (to around 10fps). The issue occurs in Firefox 33.1.1, but not in Firefox 32.0 (both have the new context menu). Using mozregression I got a window, but I'm not sure if it's the correct one since it reproduces with the old context menu: - Last good revision - 2014-05-20 - cb9f34f73ebe - First bad revision - 2014-05-21 - 9d8d16695f6a Pushlog: https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=cb9f34f73ebe&tochange=9d8d16695f6a Note that with the same regression window the Flash context menu hangs Firefox when opened, but this does not show in 36. Notes: - Windows 7 experiences some issues as well, but not very visible, and when repeatedly opening context menu, so this is not the issue here. - I'm not sure if this is an issue with Flash or the context menu, but I suspect it's Flash. - Similar issues were reported for HTML5 (see bug 1127858).
Component: Audio/Video → Audio/Video: Playback
Component: Audio/Video: Playback → Plug-ins
2 years ago
platform-rel: ? → ---
This website no longer uses flash.
Status: NEW → RESOLVED
Last Resolved: a year ago
Resolution: --- → INCOMPLETE
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