Bug#354837: mplayerplug-in should be built against xulrunner

[Ari Pollak]

When exactly does it crash in epiphany and galeon? I just tried it in 
epiphany and it works fine.

Petter Sundlöf wrote:
Package: mozilla-mplayer
Version: 3.21-1
Currently mplayerplug-in causes crashes in galeon and epiphany, since 
one's forced to use a link of libxpcom.so -> mozilla/libxpcom.so

Please either 1/ rebuild with an rpath to /usr/lib/mozilla and depend on 
mozilla or
2/ rebuild against xulrunner

thanks.