Ubuntu 14.04 just updated Firefox to 30.0 and for the first time I'm seeing this problem. `top -H` shows two mpegaudioparse0/1 threads at 98.6 and 96.6 %CPU.
I have totem and totem-mozilla packages installed. Confusingly, Totem doesn't appear in about:addons > Plugins, but if I click the _More_ link for DivX® Web Player, QuickTime Plug-in 7.6.6, VLC Multimedia Plugin (compatible Videos 3.10.1), or Windows Media Player Plug-in 10 (compatible; Videos), each is being supplied by File libtotem-<someLibraryName>.so. It's a lot clearer if you visit about:plugins instead. Mozilla's plugin-check service identifies the one plugin masquerading as all these as "Totem - The Videos 3.10.1 plugin handles video and audio streams." and says it's up-to-date. I ran `sudo apt-get remove totem-mozilla`, killed the two threads, and restarted Firefox and that fixed it. So I think somehow Firefox 30's new support for GStreamer should come with a "Suggest removing totem- mozilla". I don't recall ever explicitly installing totem-mozilla,maybe it was recommended for Firefox years ago. Presumably the totem-mozilla plugin spoofs the DivX/QuickTime/VLC/Windows Media Player plugins so that Web pages that check for them work with Firefox. I don't know how many web pages are out there depending on this. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1304351 Title: firefox 200% CPU usage while idle/shutdown: mpegaudioparse0 and mpegaudioparse1 processes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/totem/+bug/1304351/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
