In the last several weeks i had discovered that sound is not working via firefox and flash. So youtube wasn’t that funny to watch. Till today I was to lazy to search for a solution. Now i found it and it took 5 minutes to correct the problem.
Like so often the problem lies within oss and alsa. The flash plugin uses oss and my system is setup to use alsa. But no problem. Just edit the file under “/etc/firefox/firefoxrc” with your favorite editor (=vim) and replace
Just restart firefox and, hurray, there is the lost sound…