I have just reported this upstream https://bugzilla.mozilla.org/show_bug.cgi?id=1900516
** Bug watch added: Mozilla Bugzilla #1900516 https://bugzilla.mozilla.org/show_bug.cgi?id=1900516 ** Also affects: firefox (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2067564 Title: Syslog is flooded with messages when watching videos on Youtube To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/2067564/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs