from Alien_Bob's slackbuilds...
gecko-mediaplayer: added v0.9.8 - Gecko Media Player is a browser plugin that
uses GNOME MPlayer to play media in a gecko-based browser (like firefox). It
replaces mplayerplug-in from the same author.
gnome-mplayer: added v0.9.8 - GNOME MPlayer is a GTK GUI for MPlayer. Don't be
fooled by the gnome: this package does not depend on any gnome library, it
only follows the Gnome Human Interface Guidelines.
You can get his packages from here
http://connie.slackware.com/~alien/slackbuilds/