mozplugger-2.1.4 added

https://wiki.archlinux.org/index.php/browser_plugins
run: mozplugger-update as a normal user then edit /etc/mozpluggerrc (MPlayer -> Mpv):

define(MP_CMD,[mpv -really-quiet $1 </dev/null])
define(MP_EMBED,[embed noisy ignore_errors: MP_CMD(--autofit=$width -wid $window $1)])
define(MP_NOEMBED,[noembed noisy ignore_errors maxaspect swallow(mpv): MP_CMD($1)])
define(MP_AUDIO,[mpv -really-quiet $1 </dev/null])
define(MP_AUDIO_STREAM,[controls stream noisy ignore_errors: mpv -really-quiet $1 "$file" </dev/null])

www-plugins/mozplugger/Manifest

@@ -0,0 +1 @@
+DIST mozplugger-2.1.4.tar.gz 152832 SHA256 0aed537ea826bfdd28a5b14e0c45a772df836a939152e13d52e10a1ceb2ce062 SHA512 1ca62012721de89366e8c9c77fd41f2654385ea8d48e29baedb718febff7467a563bcf1c5efacba6c958c6ba59099bc66554020692eb09132e0f13d152e10174 WHIRLPOOL 3f6a20eb98845becb0859796913719b6a23932628b7cdc5784b74a8c1959604295cd5cf8da67424fdfd323949f08c2045201bebbd86d61d88ca92743799255cc

www-plugins/mozplugger/mozplugger-2.1.4.ebuild

@@ -0,0 +1,45 @@
+# Copyright (c) 2013 Marek Sapota
+#
+# Permission is hereby granted, free of charge, to any person
+# obtaining a copy of this software and associated documentation
+# files (the "Software"), to deal in the Software without
+# restriction, including without limitation the rights to use,
+# copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following
+# conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE
+
+EAPI=5
+
+inherit autotools-utils
+
+DESCRIPTION="Configurable browser plugin to launch streaming media players."
+SRC_URI="http://mozplugger.mozdev.org/files/${P}.tar.gz"
+HOMEPAGE="http://mozplugger.mozdev.org/"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~amd64"
+IUSE=""
+
+RDEPEND=""
+DEPEND="${RDEPEND}"
+
+src_prepare() {
+	sed -i "s:\(install.*\)@bindir@:\1${D}@bindir@:" Makefile.in
+	sed -i "s:\(install.*\)@sysconfdir@:\1${D}@sysconfdir@:" Makefile.in
+	sed -i "s:\(install.*\)@mandir@:\1${D}@mandir@:" Makefile.in
+	sed -i "s:PLUGINDIRS=@PLUGINDIRS@:PLUGINDIRS=${D}/usr/lib64/nsbrowser/plugins:" Makefile.in
+}