From Fedora Project Wiki

This page contains information on the Cisco OpenH264 firefox plugin.

Background

Cisco provides a binary version of a OpenH264 plugin for firefox. This plugin is needed for WebRTC along with other H264 decoding. This binary is released under this agreement from Cisco: http://www.openh264.org/BINARY_LICENSE.txt

Upstream firefox versions download and install this plugin by default automatically. Due to it's binary nature, Fedora disables this automatic download.

Source

Source for this plugin is available at https://github.com/cisco/openh264 under a BSD license.

Manual install of binary

Example installation for version 1.1: 

wget http://ciscobinary.openh264.org/openh264-linux64-v1.1-Firefox33.zip
mkdir -p ~/.mozilla/firefox/<yourprofile>/gmp-gmpopenh264/1.1/
cd ~/.mozilla/firefox/<yourprofile>/gmp-gmpopenh264/1.1/
unzip ~/openh264-linux64-v1.1-Firefox33.zip

Firefox config changes

Type about:config into the Firefox address/URL field and accept the warning.

  • From the Search field type in 264 and a handful of options will appear. Give the following Preference Names a value of true by double-clicking on false:
 media.gmp-gmpopenh264.autoupdate
 media.gmp-gmpopenh264.enabled
 media.gmp-gmpopenh264.provider.enabled
 media.peerconnection.video.h264_enabled
  • Restart Firefox
  • After restarting, the following string in about:config will change to the current version that has been installed from the web:
 media.gmp-gmpopenh264.version
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