for me,i resolved it.when ESD is enabled as with iceweasel,epiphany too needs to be invoked as "aoss epiphany-browser".I made a dpkg-divert.now it all works.thanks to ubuntu forums community though i uses Debian Sid

thanks ya all.
http://ubuntuforums.org/showpost.php...57&postcount=9
With ESD enabled(menu system>preferences>sound>devices>evrything to esd,in sounds tab>enable esd ticked,play system sounds enabled),I removed libesd0 and installed libesd-alsa0.posted a bug report about this sound problem to debian BTS also.

