Index: head/multimedia/gmp-api/Makefile
===================================================================
--- head/multimedia/gmp-api/Makefile	(revision 390180)
+++ head/multimedia/gmp-api/Makefile	(revision 390181)
@@ -1,23 +1,24 @@
 # $FreeBSD$
 
 PORTNAME=	gmp-api
-PORTVERSION=	38.0
+DISTVERSIONPREFIX=	Firefox
+DISTVERSION=	38 # tracking www/firefox
+PORTREVISION=	1
 CATEGORIES=	multimedia
 
 MAINTAINER=	gecko@FreeBSD.org
-COMMENT=	Gecko Media Plugins API from mozilla-central
+COMMENT=	Gecko Media Plugins API from mozilla-release
 
 LICENSE=	APACHE20
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	mozilla
-GH_TAGNAME=	2b8954c
 
 NO_BUILD=	yes
 NO_ARCH=	yes
 
 do-install:
 	${MKDIR} ${STAGEDIR}${PREFIX}/include/${PORTNAME}
 	${INSTALL_DATA} ${WRKSRC}/*.h ${STAGEDIR}${PREFIX}/include/${PORTNAME}
 
 .include <bsd.port.mk>
Index: head/multimedia/gmp-api/distinfo
===================================================================
--- head/multimedia/gmp-api/distinfo	(revision 390180)
+++ head/multimedia/gmp-api/distinfo	(revision 390181)
@@ -1,2 +1,2 @@
-SHA256 (mozilla-gmp-api-38.0-2b8954c_GH0.tar.gz) = 057e80dc040acb06375e546ef9688a70a36c642713134095f8d31ee081534aec
-SIZE (mozilla-gmp-api-38.0-2b8954c_GH0.tar.gz) = 16203
+SHA256 (mozilla-gmp-api-Firefox38_GH0.tar.gz) = 6b156afe850c0d6faf0492ca5feeff4358e50ddc5ce3022ddcc6905a5bd21c80
+SIZE (mozilla-gmp-api-Firefox38_GH0.tar.gz) = 16209
Index: head/multimedia/gmp-api/pkg-descr
===================================================================
--- head/multimedia/gmp-api/pkg-descr	(revision 390180)
+++ head/multimedia/gmp-api/pkg-descr	(revision 390181)
@@ -1,3 +1,6 @@
-Gecko Media Plugins API from mozilla-central.
+Gecko Media Plugins API is a special purpose extension point for
+authorised 3rd party codecs and Encrypted Media Extensions Content
+Decryption Modules. It's supported in applications like Firefox and
+SeaMonkey as well as Firefox OS.
 
 WWW: https://wiki.mozilla.org/GeckoMediaPlugins